The exterior of Tania
Tania's coliseum is a setting in Yu-Gi-Oh! GX.
Upon arriving at Duel Academy, Tania the Shadow Rider entices several students, as well as Vellian Crowler, into constructing for her a coliseum. In exchange, they were each given rare cards.
In this location, Tania Duels and defeats Bastion. She keeps him imprisoned there overnight, before releasing him out of boredom. She next Duels and is defeated by Jaden within the coliseum.