London Underground Fourteen Underground stations are outside Greater London, of which five (Amersham, Chalfont & Latimer, Chesham, and Chorleywood on the Metropolitan line, and Epping on the Central line), are beyond the M25 London Orbital motorway. Of the 32 London boroughs, six (Bexley, Bromley, Croydon, Kingston, Lewisham and Sutton) are not served by the Underground network, while Hackney has Old Street and Manor House only just inside its boundaries. Lewisham used to be served by the East London line (stations at New Cross and New Cross Gate). The line and the stations were transferred to the London Overground network in 2010. London
History of the London Underground 2008. On 7 July 2005 three bombs exploded on underground trains, two on the Circle line at Aldgate and Edgware Road and the third on the Piccadilly line between King's Cross and Russell Square. Later the same day a bomb exploded on a bus in Woburn Place. Four suicide bombers had killed themselves and fifty-two other people, and it took over a month before underground services had been restored. In 2007 the East London line, operated as an isolated shuttle since 1939, closed so that it could be converted into a London Overground line. In December 2009 the Circle line