London Underground

London Underground Limited is the division of Transport for London (TfL) responsible for providing services on London's principle metro system the London Underground, also known as 'the Tube'.

London Underground is formed of 11 Lines - Bakerloo Line, Central Line, Circle Line, District Line, Hammersmith & City Line (often shortened to H&C), Jubilee line, Metropolitan Line, Northern Line, Piccadilly Line, Victoria Line and Waterloo & City Line.