Valhalla (city)

Valhalla, sometimes called Valhalla City, was the capital of Callisto, the primary moon in the Jovian system. The city was built on a crater, six hundred klicks wide. (PROSE: So Vile a Sin) Once, when in a melancholic mood, the Seventh Doctor visited the city in search of gainful employment. He didn't get far with the city's bureaucracy before discovering that the city was infested with termites. (AUDIO: Valhalla)

Valhalla contained the personal palace of Abu ibn Walid, the Duke of Callisto. In 2982, shortly after Walid became Emperor of the Earth Empire, Roz Forrester was killed while leading an attack on a missile outpost outside the dome. (PROSE: So Vile a Sin)