HIPPODROME
The Hippodrome of Constantinople was the place for horse races. It still survives as a park in which the traces of the old race course are clearly visible and a ruin. It was constructed in 203, during the reign of the emperor Septimius Severus, and after 324 expanded by Constantine the Great. It was about 130 meters wide and 450 meters long, and could accommodate about 50,000 people. The place, which is more or less northeast-southwest in orientation, is in Turkish called At Meydanı ("Horse Square"). During the Byzantine Empire, the hippodrome was not only used for chariot races. Court ceremonies, coronations and parades also took place at the hippodrome, making it the sporting and social center of Byzantine life for over 1000 years.
The Byzantine Emperors loved nothing more than an afternoon at the chariot races, and this rectangular arena alongside Sultanahmet Park was their venue of choice.