Tarko-se arena
An arena situated within the city of Tarko-se, located on the planet Cato Neimoidia, was originally constructed to host combats between gladiators. However, by the time that the Battle of Cato Neimoidia occurred, the arena's function had changed; it was then integrated into a Separatist base.
Sources
- Star Wars: Battles that Changed the Galaxy (First mentioned)