Cairo Stadium Indoor Halls Complex consists of four Olympic-standard, multi-use indoor sporting arenas located near the Cairo International Stadium in Cairo, Egypt. The capacity of the Main Hall, which is used mostly for basketball, is 16,900 spectators.

 

It is one of the 2020 BAL season venues. The Main Hall is used for several events, like basketball, handball, volleyball, international conferences, parties and fairs.

The complex, the first of its kind in Africa and the Middle East and the third internationally, was completed in September 1991. 

According to en.wikipedia