The great Roman Hippodrome in Thessaloniki. Inside this Hippodrome, the emperor Theodosius the Great ordered the massacre of more than 7,000 inhabitants of Thessaloniki, when some rebels assassinated the military commander of the city. Its length was over 400 meters. The ruins of the Hippodrome are fragmentarily preserved. A small part of the west side is visible east of the Nea Panagia church (Fanarioton Square); other parts are preserved in basements and the open space on the blocks of Hippodromiou Square and D. Gounari, F. Eterias, and Agapinou Streets.