article: Metropolitan line
links: East London line Circle line (London Underground) Hammersmith & City line District line Tube map Watford tube station Baker Street tube station Jubilee line Bakerloo line Middlesex World War I Chesham Farringdon Road Amersham London and North Eastern Railway London Passenger Transport Board Aylesbury Buckinghamshire Uxbridge Aldgate tube station London Underground Great Central Railway City of London London King's Cross railway station Transport for London Rapid transit Bloomsbury Publishing Marylebone station Metronet