The OAKA Olympic Complex is a multi-sport facility located in Athens, Greece. It was built for the 2004 Summer Olympics and includes several venues, such as the Athens Olympic Stadium, the Aquatic Center, and the Velodrome. The complex is designed to host various sporting events and has become a significant landmark in the city. After the Olympics, the complex has been used for various events, including concerts and sports competitions. It is also home to the Greek Football Federation and serves as a training ground for athletes. The OAKA Olympic Complex remains an important part of Greece's sports infrastructure.