The only known unexcavated Roman horse racing arena in the world is in Sirmium. A colossal building about 150m wide and 450m long lays directly under the Sremska Mitrovica town center and just beside En savoir plus .
The only known unexcavated Roman horse racing arena in the world is in Sirmium. A colossal building about 150m wide and 450m long lays directly under the Sremska Mitrovica town center and just beside En savoir plus .