Metro Map, Pyongyang, North Korea
An interactive metro map from North Korea’s secretive capital. The green buttons across the bottom of the map represent all the stations: press one and the path from your current station to your destination lights up. With just a handful of stations on two lines (and only one interchange), I hardly think many people are going to be overwhelmed by the system’s complexity.
Wikipedia’s article on the Pyongyang Metro is actually a very interesting read: the stations are mostly named thematically (Comrade, Enlightenment, Three Rejuvenations, etc.), while accounts vary as to exactly how many stations foreign visitors to the city can visit — whatever the final number, it seems that they’re mostly limited to the newer, more impressive stations.