Guardus

From Tardis Wiki, the free Doctor Who reference

Guardus was another dimension or place within another dimension, a short "sideways dimensional step" from the Axis. It was home to the Overseer and others like him who possessed a multi-faceted consciousness. The Grand Presidium was on Guardus. (AUDIO: The Axis of Insanity [+]Loading...["The Axis of Insanity (audio story)"])