Aspendos. Antalya. Turkey. View of the ambulacrum, the vaulted arched walkway that runs around the top of semi-circular cavea of the Roman theatre. The theatre was built during the reign of Roman Emperor Marcus Aurelius (AD 161-180). Considered the best preserved Roman theatre of the ancient world, the theatre has a monumental two storey stage building and its semi-circular cavea has 40 rows of seats that accommodated 12000 people. The ancient city of Aspendos was founded by Greek colonists from Argos.