About Asphalt Milling
There isn't much to know about gravel and its use in daily life. A building project may quickly get this material, and it has been utilized successfully for a wide range of applications. As a result, many individuals tend to miss that gravel is not the only option.
Asphalt milling, which happens before laying asphalt, is critical in the paving process. Asphalt millings may readily replace gravel, and they even provide many advantages that conventional gravel does not.
What Are Asphalt Millings?
What exactly are asphalt millings? Asphalt millings are recycled asphalt that has been crushed into a fine powder. Also known as reclaimed asphalt pavement (RAP), they are waste and byproduct materials in pavement building, according to the Federal Highway Administration of the US Department of Transportation. They are a cost-effective alternative to total deconstruction and repaving for asphalt surface rehabilitation.
Asphalt milling is one of two primary procedures for removing asphalt. Asphalt millings result from pulverizing old asphalt into tiny particles that are about the same size as gravel. With a cold milling machine, it is possible to remove up to 2 inches of asphalt in a single pass.
Each year, the United States generates up to 41 million metric tons of waste (or 45 million tons). Much of the asphalt concrete waste is now being used in either recycled hot-mix and cold-mix asphalt preparations or aggregates in stabilized or granular base and subbase materials.
Since its inception in the middle of the 1970s, it's now evolved into a viable option that paving contractors may use to restore pavement for corporations, governments, and private citizens alike. Resurfacing roads, parking lots, and paving in business and residential areas is all possible.
How Is Asphalt Milled?
A human-driven cold milling machine digs up existing asphalt surfaces while milling asphalt for road repair and resurfacing. Two-inch-deep rows of metal cutting teeth set diagonally on a big revolving cutting disc tear up the surface. The equipment that smashes the substrate runs it through a grinder.
Conveyor belts are installed at the front of the machine to transfer the crushed material to screening or sieving equipment. Once the conveyor has finished loading the poorly milled asphalt, it moves slightly ahead of the cold milling machine and onto a truck. Loads are unloaded onto a temporary stockpile and utilized on the roadside shoulders afterward.
Cold milling machines may be as little as 1 ft 2 in and as large as 14 ft 5 in width. Larger machines may reach working depths of up to 14 inches in a single pass.
The surface is swept and cleaned when the milling machine has removed the asphalt to a specific width. It cleans the area so that the new asphalt can adhere to the existing surface. Once the old asphalt has been removed, the new asphalt should be able to stick to it better because of the rough texture it has from milling.
What Are the Benefits of Asphalt Milling?
The following are some of the advantages of using recycled asphalt or milled asphalt.
It doesn't take much time or money to maintain asphalt millings. It is only necessary to grade and recompact asphalt millings once they have been compacted once. It is a more affordable method of maintenance. In saving money on future repairs, recycled asphalt is an excellent option. Asphalt millings are a cost-effective alternative to your following product.
The carbon footprint of asphalt millings is much lower than that of fresh asphalt or other paving materials. They are made of just crushed asphalt. In some instances, it may even qualify you for LEED points if you use it for your paving project.
Asphalt's adaptability is unmatched; it may become brittle in the cold and soft in the summer. Since high temperatures more easily damage fresh asphalt, this capability makes pavement milling an essential tool. Additionally, since it has a higher porosity than standard asphalt or concrete, it's a better drainer in places prone to flooding or snow and ice accumulation.
There is no denying that millings lack the striking black hue of fresh asphalt, but many homeowners find the faded appearance desirable for the proper sort of residence. Unlike freshly laid asphalt, asphalt millings have an appearance that is somewhere between gravel and new asphalt.
It is possible to remove bumps, ruts, and other surface abnormalities by using asphalt milling. For the pavement to be appropriately level, asphalt milling removes the necessary number of pavement layers. Additionally, milling asphalt improves drainage and provides a textured surface for skid control.
Over time, asphalt hardens, making the surface of your parking lot, driveway, or private road more durable. As a result, refinishing, resurfacing, or replacing surfaces will be less frequent. When it comes to weather-resistant paving, recycled asphalt can be valuable. To put it another way, this will save you money over time.
A Specific Problem-Solving Approach
Asphalt milling is an option if damage to your parking lot or other asphalt structure is localized and cannot be corrected by repaving the whole area. It may be used to remove the asphalt to the proper depth and replace it with new asphalt at the same level as the rest of the road.
Pavement Height and Drainage
An overlay can be used to repair a pavement's surface. Thanks to this method, keeping its original height while improving it is possible. To increase the pavement height, each time an overlay technique is conducted, a new asphalt layer must be placed on top of the current asphalt layer.
When Do You Know You Need Asphalt Milling?
If your pavement has begun to "unravel" from the top down, has cracks in the paving surface that allow water in, or if the top layer of asphalt is shoving, an experienced contractor will advise you to use an asphalt milling solution. If your pavement has drainage issues and needs drainage swales cut to allow water to drain correctly, a professional contractor will advise using asphalt milling as a solution.
Our professionals can help you determine whether asphalt milling is the best option for upgrading your pavement. Contact Boswell's Paving for a quote on asphalt services and more.
About London, OH
In 1993, remains of a Bronze Age bridge were found on the south foreshore upstream from Vauxhall Bridge. This either crossed the Thames or reached a now-lost island in it. Two of the timbers were radiocarbon dated to 1750–1285 BCE.
In 2010, foundations of a large timber structure, dated to 4800–4500 BCE, were found on the Thames's south foreshore downstream from Vauxhall Bridge. The function of the mesolithic structure is unclear. Both structures are on the south bank of the Thames, where the now-underground River Effra flows into the Thames.
Despite the evidence of scattered Brythonic settlements in the area, the first major settlement was founded by the Romans about four years after the invasion of 43 AD. This only lasted until about 61 AD, when the Iceni tribe led by Queen Boudica stormed it and burnt it to the ground. The next planned incarnation of Londinium prospered, superseding Colchester as capital of the Roman province of Britannia in 100. At its height in the 2nd century, Roman London had a population of about 60,000.
With the early 5th-century collapse of Roman rule, London ceased to be a capital and the walled city of Londinium was effectively abandoned, although Roman civilisation continued around St Martin-in-the-Fields until about 450. From about 500, an Anglo-Saxon settlement known as Lundenwic developed slightly west of the old Roman city. By about 680 the city had become a major port again, but there is little evidence of large-scale production. From the 820s repeated Viking assaults brought decline. Three are recorded; those in 851 and 886 succeeded, while the last, in 994, was rebuffed.
The Vikings applied Danelaw over much of eastern and northern England, its boundary running roughly from London to Chester as an area of political and geographical control imposed by the Viking incursions formally agreed by the Danish warlord, Guthrum and the West Saxon king Alfred the Great in 886. The Anglo-Saxon Chronicle records that Alfred "refounded" London in 886. Archaeological research shows this involved abandonment of Lundenwic and a revival of life and trade within the old Roman walls. London then grew slowly until a dramatic increase in about 950.
By the 11th century, London was clearly the largest town in England. Westminster Abbey, rebuilt in Romanesque style by King Edward the Confessor, was one of the grandest churches in Europe. Winchester had been the capital of Anglo-Saxon England, but from this time London became the main forum for foreign traders and the base for defence in time of war. In the view of Frank Stenton: "It had the resources, and it was rapidly developing the dignity and the political self-consciousness appropriate to a national capital."
After winning the Battle of Hastings, William, Duke of Normandy was crowned King of England in newly completed Westminster Abbey on Christmas Day 1066. William built the Tower of London, the first of many such in England rebuilt in stone in the south-eastern corner of the city, to intimidate the inhabitants. In 1097, William II began building Westminster Hall, close by the abbey of the same name. It became the basis of a new Palace of Westminster.
In the 12th century, the institutions of central government, which had hitherto followed the royal English court around the country, grew in size and sophistication and became increasingly fixed, for most purposes at Westminster, although the royal treasury, having been moved from Winchester, came to rest in the Tower. While the City of Westminster developed into a true governmental capital, its distinct neighbour, the City of London, remained England's largest city and principal commercial centre and flourished under its own unique administration, the Corporation of London. In 1100, its population was some 18,000; by 1300 it had grown to nearly 100,000. Disaster struck in the form of the Black Death in the mid-14th century, when London lost nearly a third of its population. London was the focus of the Peasants' Revolt in 1381.
London was also a centre of England's Jewish population before their expulsion by Edward I in 1290. Violence against Jews occurred in 1190, when it was rumoured that the new king had ordered their massacre after they had presented themselves at his coronation. In 1264 during the Second Barons' War, Simon de Montfort's rebels killed 500 Jews while attempting to seize records of debts.
During the Tudor period the Reformation produced a gradual shift to Protestantism. Much of London property passed from church to private ownership, which accelerated trade and business in the city. In 1475, the Hanseatic League set up a main trading base (kontor) of England in London, called the Stalhof or Steelyard. It remained until 1853, when the Hanseatic cities of Lübeck, Bremen and Hamburg sold the property to South Eastern Railway. Woollen cloth was shipped undyed and undressed from 14th/15th century London to the nearby shores of the Low Countries, where it was considered indispensable.
Yet English maritime enterprise hardly reached beyond the seas of north-west Europe. The commercial route to Italy and the Mediterranean was normally through Antwerp and over the Alps; any ships passing through the Strait of Gibraltar to or from England were likely to be Italian or Ragusan. The reopening of the Netherlands to English shipping in January 1565 spurred a burst of commercial activity. The Royal Exchange was founded. Mercantilism grew and monopoly traders such as the East India Company were founded as trade expanded to the New World. London became the main North Sea port, with migrants arriving from England and abroad. The population rose from about 50,000 in 1530 to about 225,000 in 1605.
In the 16th century, William Shakespeare and his contemporaries lived in London during English Renaissance theatre. Shakespeare's Globe Theatre was constructed in 1599 in Southwark. Stage performances came to a halt in London when Puritan authorities shut down the theatres in the 1640s and 1650s. The ban on theatre was lifted during the Restoration in 1660, and London's oldest operating theatre, Drury Lane, opened in 1663 in what is now the West End theatre district.
By the end of the Tudor period in 1603, London was still compact. There was an assassination attempt on James I in Westminster, in the Gunpowder Plot of 5 November 1605.
In 1637, the government of Charles I attempted to reform administration in the London area. This called for the Corporation of the city to extend its jurisdiction and administration over expanding areas around the city. Fearing an attempt by the Crown to diminish the Liberties of London, coupled with a lack of interest in administering these additional areas or concern by city guilds of having to share power, caused the Corporation's "The Great Refusal", a decision which largely continues to account for the unique governmental status of the City.
In the English Civil War the majority of Londoners supported the Parliamentary cause. After an initial advance by the Royalists in 1642, culminating in the battles of Brentford and Turnham Green, London was surrounded by a defensive perimeter wall known as the Lines of Communication. The lines were built by up to 20,000 people, and were completed in under two months.
The fortifications failed their only test when the New Model Army entered London in 1647, and they were levelled by Parliament the same year.
London was plagued by disease in the early 17th century, culminating in the Great Plague of 1665–1666, which killed up to 100,000 people, or a fifth of the population.
The Great Fire of London broke out in 1666 in Pudding Lane in the city and quickly swept through the wooden buildings. Rebuilding took over ten years and was supervised by polymath Robert Hooke as surveyor for the City of London. In 1708 Christopher Wren's masterpiece, St Paul's Cathedral, was completed. During the Georgian era, new districts such as Mayfair were formed in the west; new bridges over the Thames encouraged development in South London. In the east, the Port of London expanded downstream. London's development as an international financial centre matured for much of the 18th century.
In 1762, George III acquired Buckingham House, which was enlarged over the next 75 years. During the 18th century, London was said to be dogged by crime, and the Bow Street Runners were established in 1750 as a professional police force. A total of more than 200 offences were punishable by death, including petty theft. Epidemics during the 1720s and 30s saw most children born in the city die before reaching their fifth birthday.
Coffee-houses became a popular place to debate ideas, as growing literacy and development of the printing press made news widely available, with Fleet Street becoming the centre of the British press. The invasion of Amsterdam by Napoleonic armies led many financiers to relocate to London and the first London international issue was arranged in 1817. Around the same time, the Royal Navy became the world's leading war fleet, acting as a major deterrent to potential economic adversaries. The repeal of the Corn Laws in 1846 was specifically aimed at weakening Dutch economic power. London then overtook Amsterdam as the leading international financial centre.
According to Samuel Johnson:
With the onset of the Industrial Revolution in Britain, an unprecedented growth in urbanisation took place, and the number of High Streets (the primary street for retail in Britain) rapidly grew. London was the world's largest city from about 1831 to 1925, with a population density of 325 per hectare. In addition to the growing number of stores selling goods such as Harding, Howell & Co. on Pall Mall—a contender for the first department store—the streets had scores of street sellers loudly advertising their goods and services. London's overcrowded conditions led to cholera epidemics, claiming 14,000 lives in 1848, and 6,000 in 1866. Rising traffic congestion led to the creation of the world's first local urban rail network. The Metropolitan Board of Works oversaw infrastructure expansion in the capital and some surrounding counties; it was abolished in 1889 when the London County Council was created out of county areas surrounding the capital.
From the early years of the 20th century onwards, teashops were found on High Streets across London and the rest of Britain, with Lyons, who opened the first of their chain of teashops in Piccadilly in 1894, leading the way. The tearooms, such as the Criterion in Piccadilly, became a popular meeting place for women from the suffrage movement. The city was the target of many attacks during the suffragette bombing and arson campaign, between 1912 and 1914, which saw historic landmarks such as Westminster Abbey and St Paul's Cathedral bombed.
London was bombed by the Germans in the First World War, and during the Second World War, the Blitz and other bombings by the German Luftwaffe killed over 30,000 Londoners, destroying large tracts of housing and other buildings across the city.
The 1948 Summer Olympics were held at the original Wembley Stadium, while London was still recovering from the war. From the 1940s, London became home to many immigrants, primarily from Commonwealth countries such as Jamaica, India, Bangladesh and Pakistan, making London one of the most diverse cities in the world. In 1951, the Festival of Britain was held on the South Bank. The Great Smog of 1952 led to the Clean Air Act 1956, which ended the "pea soup fogs" for which London had been notorious.
Starting mainly in the mid-1960s, London became a centre for worldwide youth culture, exemplified by the Swinging London sub-culture associated with the King's Road, Chelsea and Carnaby Street. The role of trendsetter revived in the punk era. In 1965 London's political boundaries were expanded in response to the growth of the urban area and a new Greater London Council was created. During The Troubles in Northern Ireland, London was hit from 1973 by bomb attacks by the Provisional Irish Republican Army. These attacks lasted for two decades, starting with the Old Bailey bombing. Racial inequality was highlighted by the 1981 Brixton riot.
Greater London's population declined in the decades after the Second World War, from an estimated peak of 8.6 million in 1939 to around 6.8 million in the 1980s. The principal ports for London moved downstream to Felixstowe and Tilbury, with the London Docklands area becoming a focus for regeneration, including the Canary Wharf development. This was born out of London's increasing role as an international financial centre in the 1980s. The Thames Barrier was completed in the 1980s to protect London against tidal surges from the North Sea.
The Greater London Council was abolished in 1986, leaving London with no central administration until 2000 and the creation of the Greater London Authority. To mark the 21st century, the Millennium Dome, London Eye and Millennium Bridge were constructed. On 6 July 2005 London was awarded the 2012 Summer Olympics, as the first city to stage the Olympic Games three times. On 7 July 2005, three London Underground trains and a double-decker bus were bombed in a series of terrorist attacks.
In 2008, Time named London alongside New York City and Hong Kong as Nylonkong, hailing them as the world's three most influential global cities. In January 2015, Greater London's population was estimated to be 8.63 million, its highest since 1939. During the Brexit referendum in 2016, the UK as a whole decided to leave the European Union, but most London constituencies voted for remaining.
London, also known as Greater London, is one of nine regions of England and the top subdivision covering most of the city's metropolis. The City of London at its core once comprised the whole settlement, but as its urban area grew, the Corporation of London resisted attempts to amalgamate the City with its suburbs, causing "London" to be defined several ways.
Forty per cent of Greater London is covered by the London post town, in which 'LONDON' forms part of postal addresses. The London telephone area code (020) covers a larger area, similar in size to Greater London, although some outer districts are excluded and some just outside included. The Greater London boundary has been aligned to the M25 motorway in places.
Further urban expansion is now prevented by the Metropolitan Green Belt, although the built-up area extends beyond the boundary in places, producing a separately defined Greater London Urban Area. Beyond this is the vast London commuter belt. Greater London is split for some purposes into Inner London and Outer London, and by the River Thames into North and South, with an informal central London area. The coordinates of the nominal centre of London, traditionally the original Eleanor Cross at Charing Cross near the junction of Trafalgar Square and Whitehall, are about. Based on the centre of gravity of its map, the geographical centre of London is in the London Borough of Lambeth, 0.1 miles (150 m) to the north-east of Lambeth North tube station.
Within London, both the City of London and the City of Westminster have city status and both the City of London and the remainder of Greater London are counties for the purposes of lieutenancies. The area of Greater London includes areas that are part of the historic counties of Middlesex, Kent, Surrey, Essex and Hertfordshire. London's status as the capital of England, and later the United Kingdom, has never been granted or confirmed by statute or in written form.
Its status as a capital was established by constitutional convention, which means its status as de facto capital is a part of the UK's uncodified constitution. The capital of England was moved to London from Winchester as the Palace of Westminster developed in the 12th and 13th centuries to become the permanent location of the royal court, and thus the political capital of the nation. More recently, Greater London has been defined as a region of England and in this context is known as London.
Greater London encompasses a total area of 611 square miles (1,583 km) an area which had a population of 7,172,036 in 2001 and a population density of 11,760 inhabitants per square mile (4,542/km2). The extended area known as the London Metropolitan Region or the London Metropolitan Agglomeration, comprises a total area of 3,236 square miles (8,382 km) has a population of 13,709,000 and a population density of 3,900 inhabitants per square mile (1,510/km2).
Modern London stands on the Thames, its primary geographical feature, a navigable river which crosses the city from the south-west to the east. The Thames Valley is a flood plain surrounded by gently rolling hills including Parliament Hill, Addington Hills, and Primrose Hill. Historically London grew up at the lowest bridging point on the Thames. The Thames was once a much broader, shallower river with extensive marshlands; at high tide, its shores reached five times their present width.
Since the Victorian era the Thames has been extensively embanked, and many of its London tributaries now flow underground. The Thames is a tidal river, and London is vulnerable to flooding. The threat has increased over time because of a slow but continuous rise in high water level caused by climate change and by the slow 'tilting' of the British Isles (up in Scotland and Northern Ireland and down in southern parts of England, Wales and Ireland) as a result of post-glacial rebound.
In 1974 a decade of work began on the construction of the Thames Barrier across the Thames at Woolwich to deal with this threat. While the barrier is expected to function as designed until roughly 2070, concepts for its future enlargement or redesign are already being discussed.
London has had a small number of earthquakes over the years, notably those of 1750 which macroseismic information indicates had their epicentres directly under the city. In 2018, two active faults were discovered running parallel to each other, directly under the centre of the city. Furthermore, the city has been damaged at least twice (with fatalities) in the earthquakes of 1382 and 1580. Those earthquakes had their epicentres under the English Channel. London's building code is being redrawn so that every new structure must be able to withstand an earthquake of at least 6.5 on the Richter scale.
London has a temperate oceanic climate (Köppen: Cfb). Rainfall records have been kept in the city since at least 1697, when records began at Kew. At Kew, the most rainfall in one month is 7.4 inches (189 mm) in November 1755 and the least is 0 inches (0 mm) in both December 1788 and July 1800. Mile End also had 0 inches (0 mm) in April 1893. The wettest year on record is 1903, with a total fall of 38.1 inches (969 mm) and the driest is 1921, with a total fall of 12.1 inches (308 mm). The average annual precipitation amounts to about 600 mm, which is half the annual rainfall of New York City, but also lower than Rome, Lisbon, and Sydney, Australia. Despite its relatively low annual precipitation, London still receives 109.6 rainy days on the 1.0 mm threshold annually. However, London is vulnerable to climate change in the United Kingdom, and there is increasing concern among hydrological experts that London households may run out of water before 2050.
Temperature extremes in London range from 40.2 °C (104.4 °F) at Heathrow on 19 July 2022 down to −16.1 °C (3.0 °F) at Northolt on 1 January 1962. Records for atmospheric pressure have been kept at London since 1692. The highest pressure ever reported is 1,049.8 millibars (31.00 inHg) on 20 January 2020.
Summers are generally warm, sometimes hot. London's average July high is 23.5 °C (74.3 °F). On average each year, London experiences 31 days above 25 °C (77.0 °F) and 4.2 days above 30.0 °C (86.0 °F). During the 2003 European heat wave prolonged heat led to hundreds of heat-related deaths. There was also a previous spell of 15 consecutive days above 32.2 °C (90.0 °F) in England in 1976 which also caused many heat related deaths. A previous temperature of 37.8 °C (100.0 °F) in August 1911 at the Greenwich station was later disregarded as non-standard. Droughts can also, occasionally, be a problem, especially in summer, most recently in summer 2018, and with much drier than average conditions prevailing from May to December. However, the most consecutive days without rain was 73 days in the spring of 1893.
Winters are generally cool with little temperature variation. Heavy snow is rare but snow usually falls at least once each winter. Spring and autumn can be pleasant. As a large city, London has a considerable urban heat island effect, making the centre of London at times 5 °C (9 °F) warmer than the suburbs and outskirts. This can be seen below when comparing London Heathrow, 15 miles (24 km) west of London, with the London Weather Centre.
Places within London's vast urban area are identified using district names, such as Mayfair, Southwark, Wembley, and Whitechapel. These are either informal designations, reflect the names of villages that have been absorbed by sprawl, or are superseded administrative units such as parishes or former boroughs.
Such names have remained in use through tradition, each referring to a local area with its own distinctive character, but without official boundaries. Since 1965 Greater London has been divided into 32 London boroughs in addition to the ancient City of London. The City of London is the main financial district, and Canary Wharf has recently developed into a new financial and commercial hub in the Docklands to the east.
The West End is London's main entertainment and shopping district, attracting tourists. West London includes expensive residential areas where properties can sell for tens of millions of pounds. The average price for properties in Kensington and Chelsea is over £2 million with a similarly high outlay in most of central London.
The East End is the area closest to the original Port of London, known for its high immigrant population, as well as for being one of the poorest areas in London. The surrounding East London area saw much of London's early industrial development; now, brownfield sites throughout the area are being redeveloped as part of the Thames Gateway including the London Riverside and Lower Lea Valley, which was developed into the Olympic Park for the 2012 Olympics and Paralympics.
London's buildings are too diverse to be characterised by any particular architectural style, partly because of their varying ages. Many grand houses and public buildings, such as the National Gallery, are constructed from Portland stone. Some areas of the city, particularly those just west of the centre, are characterised by white stucco or whitewashed buildings. Few structures in central London pre-date the Great Fire of 1666, these being a few trace Roman remains, the Tower of London and a few scattered Tudor survivors in the city. Further out is, for example, the Tudor-period Hampton Court Palace, England's oldest surviving Tudor palace, built by Cardinal Thomas Wolsey in about 1515.
Part of the varied architectural heritage are the 17th-century churches by Wren, neoclassical financial institutions such as the Royal Exchange and the Bank of England, to the early 20th century Old Bailey and the 1960s Barbican Estate.
The 1939 Battersea Power Station by the river in the south-west is a local landmark, while some railway termini are excellent examples of Victorian architecture, most notably St. Pancras and Paddington. The density of London varies, with high employment density in the central area and Canary Wharf, high residential densities in inner London, and lower densities in Outer London.
The Monument in the City of London provides views of the surrounding area while commemorating the Great Fire of London, which originated nearby. Marble Arch and Wellington Arch, at the north and south ends of Park Lane, respectively, have royal connections, as do the Albert Memorial and Royal Albert Hall in Kensington. Nelson's Column (built to commemorate Admiral Horatio Nelson) is a nationally recognised monument in Trafalgar Square, one of the focal points of central London. Older buildings are mainly brick built, most commonly the yellow London stock brick or a warm orange-red variety, often decorated with carvings and white plaster mouldings.
In the dense areas, most of the concentration is via medium- and high-rise buildings. London's skyscrapers, such as 30 St Mary Axe, Tower 42, the Broadgate Tower and One Canada Square, are mostly in the two financial districts, the City of London and Canary Wharf. High-rise development is restricted at certain sites if it would obstruct protected views of St Paul's Cathedral and other historic buildings. This protective policy, known as 'St Paul’s Heights', has been in operation by the City of London since 1937. Nevertheless, there are a number of tall skyscrapers in central London (see Tall buildings in London), including the 95-storey Shard London Bridge, the tallest building in the United Kingdom.
Other notable modern buildings include The Scalpel, originally a nickname coined by the Financial Times due to its distinctive angular design but subsequently designated as its official name, 20 Fenchurch Street, dubbed "The Walkie-Talkie" because of its distinctive shape that resembles a two-way radio handset, the former City Hall in Southwark with its distinctive oval shape, the Art Deco BBC Broadcasting House plus the Postmodernist British Library in Somers Town/Kings Cross and No 1 Poultry by James Stirling. What was formerly the Millennium Dome, by the Thames to the east of Canary Wharf, is now an entertainment venue called the O2 Arena.
The London Natural History Society suggests that London is "one of the World's Greenest Cities" with more than 40 per cent green space or open water. They indicate that 2000 species of flowering plant have been found growing there and that the tidal Thames supports 120 species of fish. They also state that over 60 species of bird nest in central London and that their members have recorded 47 species of butterfly, 1173 moths and more than 270 kinds of spider around London. London's wetland areas support nationally important populations of many water birds. London has 38 Sites of Special Scientific Interest (SSSIs), two national nature reserves and 76 local nature reserves.
Amphibians are common in the capital, including smooth newts living by the Tate Modern, and common frogs, common toads, palmate newts and great crested newts. On the other hand, native reptiles such as slowworms, common lizards, barred grass snakes and adders, are mostly only seen in Outer London.
Among other inhabitants of London are 10,000 red foxes, so that there are now 16 foxes for every square mile (6 per square kilometre) of London. These urban foxes are noticeably bolder than their country cousins, sharing the pavement with pedestrians and raising cubs in people's backyards. Foxes have even sneaked into the Houses of Parliament, where one was found asleep on a filing cabinet. Another broke into the grounds of Buckingham Palace, reportedly killing some of Queen Elizabeth II's prized pink flamingos. Generally, however, foxes and city folk appear to get along. A survey in 2001 by the London-based Mammal Society found that 80 per cent of 3,779 respondents who volunteered to keep a diary of garden mammal visits liked having them around. This sample cannot be taken to represent Londoners as a whole.
Other mammals found in Greater London are hedgehog, brown rat, mice, rabbit, shrew, vole, and grey squirrel. In wilder areas of Outer London, such as Epping Forest, a wide variety of mammals are found, including European hare, badger, field, bank and water vole, wood mouse, yellow-necked mouse, mole, shrew, and weasel, in addition to red fox, grey squirrel and hedgehog. A dead otter was found at The Highway, in Wapping, about a mile from the Tower Bridge, which would suggest that they have begun to move back after being absent a hundred years from the city. Ten of England's eighteen species of bats have been recorded in Epping Forest: soprano, Nathusius' and common pipistrelles, common noctule, serotine, barbastelle, Daubenton's, brown long-eared, Natterer's and Leisler's.
Among the strange sights in London have been a whale in the Thames, while the BBC Two programme Natural World: Unnatural History of London shows feral pigeons using the London Underground to get around the city, a seal that takes fish from fishmongers outside Billingsgate Fish Market, and foxes that will "sit" if given sausages.
Herds of red and fallow deer also roam freely within much of Richmond and Bushy Park. A cull takes place each November and February to ensure numbers can be sustained. Epping Forest is also known for its fallow deer, which can frequently be seen in herds to the north of the Forest. A rare population of melanistic, black fallow deer is also maintained at the Deer Sanctuary near Theydon Bois. Muntjac deer, which escaped from deer parks at the turn of the 20th century, are also found in the forest. While Londoners are accustomed to wildlife such as birds and foxes sharing the city, more recently urban deer have started becoming a regular feature, and whole herds of fallow deer come into residential areas at night to take advantage of London's green spaces.