The Ancient Stadium is another important monument of the ancient city. It was built in the 2nd century during the reign of the Roman Emperor Hadrian. It is situated between Danov Hill and one of the Three Hills, beneath the main street from Dzhumaya Square to Kamenitsa Square. It was modelled after the stadium in Delphi. It was approximately long and wide, and could seat up to 30,000 spectators. The athletic games at the stadium were organised by the General Assembly of the province of Thrace. In their honour, the royal mint of Philippopolis coined money featuring the face of the ruling emperor as well as the types of athletic events held in the stadium. Only a small part of the northern section with 14 seat rows can be seen today; the larger part lies under the main street and a number of buildings.