The arena seats up to 17,500 for the gymnastics events and 19,200 for the basketball games, though only 12,500 seats were made publicly available for the gymnastics. Construction of the building was completed on August 30, 2004, and it was officially opened on August 10, 2004, shortly before the beginning of the games. It is notable for the distinctive A-frame roof.
The Olympic IndoorHall (also known simply as the IndoorHall) is the largest indoor venue in use for sporting events at the 2004 Summer Olympics in Athens, Greece.
On May 18 and 20, 2006 the Olympic IndoorHall hosted the 51st Eurovision Song Contest, that was held in Athens after Greece's victory at the Song Contest in 2005.
The Olympic Aquatic Centre is a complex at the Athens Olympic Sports Complex, consisting of two outdoor pools and one indoor pool, that was built for the 2004 Summer Olympics in Athens, Greece.
This wrestling and judo hall is situated in Ano Liossia, in the northwest region of Athens.
Three sporting events were hosted at the IndoorArena and Fencing Hall of the Helliniko Olympic Complex Athens: the preliminaries of basketball and the finals of handball at the IndoorArena and the preliminaries and final of fencing at the Fencing Hall.
The Olympic Hockey Center is a new construction, in the south of Athens, with one large pitch of 7.300 seats and a smaller one of 2.100.