Amman's Roman Theatre is a 6,000-seat, 2nd-century Roman theatre. A famous landmark in the Jordanian capital, it dates back to the Roman period when the city was known as Philadelphia. The theatre was built during the reign of Antonius Pius (138-161 CE). The large and steeply raked structure could seat about 6,000 people: built into the hillside, it was oriented north to keep the sun off the spectators.