Cannon City

Cannon City is the headquarters of the of the Commonwealth and the largest human settlement in London. Built within Cannon Street Station the city houses over 3000 people and is well fortified against the harsh nuclear winter, mutants and enemy soldiers alike. Cannon City has stairs and escalators leading down to Cannon Street tube station, which is considered a different entity from the City and the City is also connected to the Commonwealth Parliament which is housed in the offices that once stood above Cannon Street station.

Cannon City is comprised of various "neighbourhoods" and a train-yard where the station's platforms once were and a market and pub now take up the lower foyer. Elsewhere in the city there is a school, library, church, hotel, forum, baths and various armouries and guard outposts.