The Victoria line is a London Underground line that runs between Brixton in south London and Walthamstow Central in the north-east, via the West End. It is printed in light blue on the Tube map and is one of the only two lines on the network to run completely underground, the other being the Waterloo & City line.
The Piccadilly line is a deep-level London Underground line running from the north to the west of London. It has two branches, which split at Acton Town, and serves 53 stations. The line serves Heathrow Airport, and some of its stations are near tourist attractions such as Piccadilly Circus and Buckingham Palace. The District and Metropolitan lines share some sections of track with the Piccadilly line. Printed in dark blue on the Tube map, it is the sixth-busiest line on the Underground network, with nearly 218 million passenger journeys in 2019.
The King's Cross fire occurred in 1987 at King's Cross St Pancras tube station in London, England, causing 31 fatalities. It began under a wooden escalator before spreading into the ticket hall in a flashover.
Tottenham Court Road is an interchange station in the West End of London for London Underground and Elizabeth line services.
Charing Cross is a London Underground station at Charing Cross in the City of Westminster. The station is served by the Bakerloo and Northern lines and provides an interchange with Charing Cross mainline station. On the Bakerloo line it is between Piccadilly Circus and Embankment stations, and on the Charing Cross branch of the Northern line it is between Leicester Square and Embankment stations. The station is in fare zone 1.
Holborn is a London Underground station in Holborn, Central London, located at the junction of High Holborn and Kingsway. It is served by the Central and Piccadilly lines. On the Central line the station is between Tottenham Court Road and Chancery Lane stations and on the Piccadilly line it is between Covent Garden and Russell Square stations. The station is in Travelcard Zone 1. Close by are the British Museum, Lincoln's Inn Fields, Red Lion Square, Bloomsbury Square, London School of Economics and Sir John Soane's Museum.
Finsbury Park is an intermodal interchange station in North London for London Underground, National Rail and London Buses services. The station is the third busiest Underground station outside Zone 1, with over 33 million passengers using the station in 2019.
Piccadilly Circus is a London Underground station located directly beneath Piccadilly Circus itself, with entrances at every corner. Located in Travel-card Zone 1, the station is on the Piccadilly line between Green Park and Leicester Square stations and on the Bakerloo line between Oxford Circus and Charing Cross stations.
Oxford Circus is a London Underground station serving Oxford Circus at the junction of Regent Street and Oxford Street, with entrances on all four corners of the intersection. The station is an interchange between three lines: Bakerloo, Central and Victoria. As of 2022, it was the fourth-busiest station on the London Underground. On the Bakerloo line it is between Regent's Park and Piccadilly Circus stations, on the Central line it is between Bond Street and Tottenham Court Road stations, and on the Victoria line it is between Green Park and Warren Street stations. The station is in Travelcard Zone 1.
Green Park is a London Underground station located on the edge of Green Park, with entrances on both sides of Piccadilly. The station is served by three lines: Jubilee, Piccadilly and Victoria. On the Jubilee line, it is between Bond Street and Westminster stations; on the Piccadilly line, it is between Hyde Park Corner and Piccadilly Circus stations and on the Victoria line, it is between Victoria and Oxford Circus stations. It is in fare zone 1.
King's Cross Thameslink station is a closed railway station in central London, England. It is located on Pentonville Road, around 250 metres (0.2 mi) east of King's Cross mainline station. At the time of closure, in 2007, it was served by Thameslink trains and managed by First Capital Connect. Services have been transferred to a new station underneath St Pancras.
Highgate is a London Underground station and former railway station in Archway Road, in the London Borough of Haringey in north London. The station takes its name from nearby Highgate Village. It is on the High Barnet branch of the Northern line, between East Finchley and Archway stations, and is in Travelcard Zone 3.
Euston is a London Underground station. It directly connects with its National Rail railway station above it. The station is in Travelcard Zone 1.
Angel is a London Underground station in the Angel area of the London Borough of Islington. It is on the Bank branch of the Northern line, between King's Cross St. Pancras and Old Street stations, in Travelcard Zone 1. The station was originally built by the City & South London Railway (C&SLR) and opened on 17 November 1901. The station served as a terminus until the line was extended to Euston on 12 May 1907.
Warren Street is a London Underground station, located at the intersection of Tottenham Court Road and Euston Road and named after adjoining Warren Street. It is served by the Northern and Victoria lines and although it is relatively used less than a number of neighbouring stations, it provides an interchange between these two lines as well as access to University College Hospital.
Russell Square is a London Underground station opposite Russell Square on Bernard Street, Bloomsbury, in the London Borough of Camden. The station is on the Piccadilly line, between Holborn and King's Cross St Pancras and is in Travelcard Zone 1.
Kentish Town is an interchange station located in Kentish Town in the London Borough of Camden for London Underground and National Rail services.
Crossrail 2 is a suspended proposal for a hybrid commuter rail and rapid transit route in South East England, running from nine stations in Surrey to three in Hertfordshire, providing a new North–South rail link across Greater London. It would connect the South West Main Line to the West Anglia Main Line, via Victoria and King's Cross St Pancras. The intent was to alleviate severe overcrowding that would otherwise occur on commuter rail routes into Central London. When first proposed, the hope was for construction to start around 2023, with the new line opening from the early 2030s. The project's cost has been estimated at £31.2 billion.
The railway infrastructure of the London Underground includes 11 lines, with 272 stations. There are two types of line on the London Underground: services that run on the sub-surface network just below the surface using larger trains, and the deep-level tube lines, that are mostly self-contained and use smaller trains. Most of the lines emerge on the surface outside the Central London area.
The transport system now known as the London Underground began in 1863 with the Metropolitan Railway, the world's first underground railway. Over the next forty years, the early sub-surface lines reached out from the urban centre of the capital into the surrounding rural margins, leading to the development of new commuter suburbs. At the turn of the nineteenth century, new technology—including electric locomotives and improvements to the tunnelling shield—enabled new companies to construct a series of "tube" lines deeper underground. Initially rivals, the tube railway companies began to co-operate in advertising and through shared branding, eventually consolidating under the single ownership of the Underground Electric Railways Company of London (UERL), with lines stretching across London.
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89.82 million [1] 
36.73 million [4] 
London transportportal 
