The Hippodrome of Constantinople was a circus that was the sporting and social centre of Constantinople, capital of the Byzantine Empire. Today it is a square named Sultanahmet Meydanı (Sultan Ahmet Square) in the Turkish city of Istanbul, with a few fragments of the original structure surviving. The word hippodrome comes from the Greek hippos, horse, and dromos (δρόμος), path or way. For this reason, it is sometimes also called Atmeydanı ("Horse Square") in Turkish.