Sangmu Gymnasium is an indoor sporting arena located in Seongnam, South Korea. The capacity of the arena is 5,000 people and was built in 1986 to host wrestling events at the 1988 Summer Olympics. References 1988 Summer Olympics official report. Volume 1. Part 1. p. 192. Indoor arenas in South Korea Venues of the 1988 Summer Olympics Olympic wrestling venues Sports venues in Gyeonggi Province Buildings and structures in Seongnam Korea Armed Forces Athletic Corps Venues of the 1986 Asian Games