The Westminster Station London Underground sign is seen near The Houses of Parliament , in central London March 8, 2011. REUTERS/Toby Melville (BRITAIN - Tags: CITYSCAPE SOCIETY TRAVEL) © Bild: Reuters/TOBY MELVILLE London Tube 09.01.2013 150 Jahre und kein bisschen müde Die älteste U-Bahn der Welt feiert in London Geburtstag. von: Marcel Ludwig © Bild: Reuters/TOBY MELVILLE The Westminster Station London Underground sign is © Bild: Reuters/HO A new map for the London underground system is see © Bild: Wikimedia Commons tube_gemeinfrei.jpg © Bild: Reuters/HANDOUT A restored steam engine travels into Baker Street © Bild: Reuters/LUKE MACGREGOR A worker passes First Great Western trains at Padd © Bild: Wikimedia Commons/User:Oxyman marlboroughroad_oxyman.jpg © Bild: APA/Andy Rain FILE BRITAIN METRONET LONDON TRANSPORT © Bild: APA/HORACIO VILLALOBOS BRITAIN LONDON TRANSPORT © Bild: Reuters/ANDREW WINNING A passenger uses an escalator in a London Undergro © Bild: Wikimedia Commons/User: BillyHicks woodenescalator_billyhicks.jpg © Bild: Reuters/DYLAN MARTINEZ A cleaner, known as a fluffer, inspects the train © Bild: Reuters/LUKE MACGREGOR A London Underground sign is seen behind a locked © Bild: Reuters/DYLAN MARTINEZ Maintenance workers repair part of the tracks at N © Bild: Reuters/CHRIS HELGREN Participants in a No Trousers Day flashmob ride th © Bild: Reuters/SUZANNE PLUNKETT Flowers are seen placed at the London Bombing Memo © Bild: APA/ANDY RAIN BRITAIN ROYAL WEDDING OYSTER CARD