Miletus. Turkey. View of the broad plan and silted harbour from the top and rear of the impressive Greco-Roman theatre at the ancient Greek city of Miletus in western Anatolia on the Aegean coast of Turkey. Originally dating from the 4th century B.C, the theatre is the best preserved building at Miletus and is undoubtedly one of the finest examples of Greco-roman theatres from the ancient world. From the 4th century BC onwards, the theatre was altered and enlarged by the Greeks and then Romans until it reached its present form in the 2nd century AD. The theatre originally had a seating capacity of 5300, however this had grown to an amazing 25,000 seating capacity in Roman times.