Pyongyang Metro System of Democratic People's Republic of Korea: Unofficial site has facts, history, route maps, station lists and photos.The Pyongyang Metro: Unofficial site has extensive information about the subway system in the North Korean capital. Includes maps, photos of stations and train equipment, the text of a 1994 official Metro guidebook, tram system information, related Web links, and MP3 audio files of the martial music typically played on loudspeakers in Metro stations.