coliseum

noun2

1. •
   A large theatre, cinema, or stadium.

   • Has he not found this wide region profusely sprinkled with public works—highways, bridges, acqueducts,^([sic]) arches, palaces, Colisea,—massive, Roman-built? — 1859
2. •
   A large, often circular building, for indoor sporting events, exhibitions, concerts, etc.; arena.

   • The state deplores the consumer approach in sport—and builds the colisea which encourage it. — 1956