The ancient Hippodrome was begun by Septimius Severus in AD 203 and completed by Constantine the Great in AD 330. This was the center of Byzantine public life and the scene of splendid games and chariot races but also factional conflicts.
Today, there isn't much of the Hippodrome left to see, except for a small section of the gallery walls on the southern side, but the At Meydani (park), which now stands on the site is home to a variety of monuments.
On the northwest side is a fountain, presented to the Ottoman sultan by the German Emperor William II in 1898.