The magnificent Hellenistic theatre at Pergamon is the centerpiece of the acropolis of the ancient city, which is located just north of the modern-day town of Bergama on Turkey’s northern Aegean coast. It is said to be the steepest ancient theatre in the world and the view down to the valley is rather spectacular. The cavea which consists of 80 rows of seats is divided into three sections by two diazomas. The capacity was 10,000 people.
The Hellenistic theatre was first built in mid the 3rd century BC, at the beginning of the Attalid dynasty, and renovated extensively by King Emenes II (ruled 197-159 BC). The theatre was later used during the Roman period with some alterations. Later additions included a marble stage house, a royal box and a 246.5 metre-long Doric colonnaded terrace.
Watch this impressive 3D animation of the Acropolis of Pergamon: