London Underground ticketing destinations and most interchange stations are in zone 1, meaning that most journeys over similar distances will cost the same. A few stations in the north east of the network, on the Central line, outside Greater London (in the Epping Forest district) are in zones 4, 5 and 6. In the north west of the network, on the Metropolitan line, zones 7, 8 and 9 (formerly A - D) cover stations outside Greater London including Amersham and Chesham in the Chiltern district of Buckinghamshire. Unlike the lower numbered zones, these ancillary areas do not encircle the capital. Some stations are
London Underground in a station. Similarly, Poems on the Underground has commissioned poetry since 1986 that are displayed in carriages. The Underground (including several fictitious stations) has been featured in many movies and television shows, including "Skyfall", "Die Another Day", "Sliding Doors", "An American Werewolf in London", "Creep", "Tube Tales, Sherlock" and "Neverwhere". The London Underground Film Office received over 200 requests to film in 2000. The Underground has also featured in music such as The Jam's "Down in the Tube Station at Midnight" and in literature such as the graphic novel "V for Vendetta". Popular legends about the Underground being haunted