Colosseum

Thesaurus
agora, amphitheater, arena, athletic field, auditorium, background, bear garden, bowl, boxing ring, bull ring, campus, canvas, circus, cockpit, coliseum, course, field, floor, forum, ground, gym, gymnasium, hall, hippodrome, lists, locale, marketplace, mat, milieu, open forum, palaestra, parade ground, pit, place, platform, precinct, prize ring, public square, purlieu, range, ring, scene, scene of action, scenery, setting, site, sphere, squared circle, stadium, stage, stage set, stage setting, terrain, theater, tilting ground, tiltyard, walk, wrestling ring