article: London Underground
links: Victoria Line Metropolitan line Circle line (London Underground) London Underground 2009 Stock Heathrow Airport Hammersmith & City line District line Evening Standard Piccadilly line Railway track Jubilee Line IRA Waterloo & City line Epping Forest (district) Railway Circle Line Victoria line Jubilee line Bakerloo line London Underground 1972 Stock Fulham Broadway tube station Glasgow Subway Watford Strike action London North East England Railway station Greater London 1,000,000,000 Oyster card Northern line Central line Second World War Tyne and Wear Metro Piccadilly Line North America Madrid Bank and Monument stations Transport for London Rapid transit London Underground 1973 Stock New York City London Underground 1992 Stock