London Underground

The London Underground is an electric railway public transport network (a metro or subway system) that runs both above and below ground throughout the Greater London area. It is usually referred to by Londoners as either simply "the Underground" , or (more familiarly, due to the shape of its deep-bore tunnels) as "the Tube". It is the oldest and biggest such underground system in the world. Operations began on 10 January 1863 on the Metropolitan Railway; most of the initial route is now part of the Hammersmith & City Line.

See also

• London Underground rolling stock
• Docklands Light Railway | (Croydon) Tramlink | Crossrail
• Mind the gap
• Inspector Sands
• Lots Road power station
• Transport for London
• Connect Project
• London Post Office Railway and other features of Subterranean London
• Northern City Line
• List of London Underground stations | Closed London Underground stations
• List of metro systems