The Copper Box is an architecturally interesting multi-sport venue in the Queen Elizabeth Olympic Park, completed in 2011. It is the only indoor sports arena retained in the park. The third largest arena in London, the Copper Box Arena is one of London's most flexible indoor venues. With retractable tiered seating for up to 7,500 spectators, a wide range of sports and activities can be hosted. Facilities include the sports hall, a dance hall, an 80-station gym, two studios, rehearsal rooms, creche corridors, various multi-purpose rooms, four unisex changing rooms, lockers, a cafe, loading and service yard.