The London Underground is the world’s oldest underground network, first opening in 1863.
It is also one of the busiest metro systems serving up to five million passenger journeys a day. At peak times, there are more than 543 trains whizzing around the capital.
The Transport for London (TfL) network includes 272 functioning Tube stations, but at least another 40 Overground and Underground stations exist that are no longer used for travel.
These stations have been closed for a variety of reasons from low passenger numbers to re-routing.
During World War II, many stations became public shelters and underground offices for London Underground and government staff. Down Street station was transformed into an underground facility with phone lines, and even hosted a meeting of the War Cabinet.
Some of the disused stations have also been used as filming locations. Aldwych station was used for The Prodigy's 'Firestarter' music video and the Mummy. While the former Jubilee platform of Charing Cross station featured in 28 Weeks Later and Skyfall.