Down Street Abandoned Tube Station - Hidden London

Down Street is a fascinating abandoned London Underground station that closed to passengers in 1932 but gained historical significance during World War II when it served as a secure bunker and office complex for the Railway Executive Committee, and later housed Prime Minister Winston Churchill and the War Cabinet during the Blitz. Located between Hyde Park Corner and Green Park stations on the Piccadilly line, this "ghost station" retains much of its original 1907 architecture and wartime modifications, including reinforced rooms, communication equipment, and even remnants of the Map Room where crucial wartime decisions were made. The London Transport Museum now offers exclusive guided tours of Down Street, providing visitors with a rare opportunity to explore this hidden piece of London's underground history and experience firsthand the atmospheric tunnels and chambers that played a vital role in Britain's wartime operations - though tours must be booked well in advance due to their popularity and the limited access to this remarkable subterranean time capsule.