Bostromville District
From Tardis Wiki, the free Doctor Who reference
The Bostromville District of the City of the Saved was an area that simulated life in early space colonies with its constantly shifting network of transit tubes and habitation structures. Gravitic shielding and generators counteracted the City's pseudo-gravity, creating contradictory verticals and volumes of free-fall.
During the Civil War, Temulen Khatun ordered her mounted horde to burn it down and kill the inhabitants. (PROSE: A Hundred Words from a Civil War)
