The National Indoor Stadium, a.k.a Folding Fan, is an arena located at Olympic Green in Chaoyang, Beijing, China.
The stadium has a capacity of 20,000 people, and was constructed for the 2008 Summer Olympics. It is nicknamed the Fan due to its design resembling a traditional Chinese folding fan.
Wikipedia https://en.wikipedia.org/wiki/National_Indoor_Stadium
Address China
Coordinates 39°59'41.693" N 116°23'2.687" E