Botropolis

Botropolis is a futuristic city located on a comet in which the Go-Bots dwell. Every year, the Botropolis High Council selects citizens to serve and protect on one needy world, though from all appearances, the only thing the worlds need protection from is rogue Go-Bots.

Go-Bots cartoon continuity
The comet on which Botropolis was located was part of the Solar System, meaning that Earth would one day be a candidate for Go-Bot protection. This occurred in the year 2003, when the High Council selected Aero-Bot, Strong-Bot, Speed-Bot, Beast-Bot and Buzzer-Bot to leave Botropolis and protect Earth. Go-Bot scientists developed Go-Brillium, a new energy source that would give Go-Bots enhanced strength and skill. The two test subjects, Racer-Bot ALPHA and Racer-Bot BETA, ran rampant through Botropolis, scattering Go-Bots as they went. The pair managed to demolish a tower as they left the city and headed for Earth.

Animated cartoon
Botropolis was located in the Hadean System, Cybertron's home system.