Aspendos is an old Greek city on the south coast of Turkey. The theater was built in 155 AD by the architect Zenon, a native of the town. With a diameter of 96 metres (315 ft), it provided seating for 12,000.
What an amazing thing, another spectacular remnant of the classical past that I never heard of. Below other images of the town, the aqueduct and then the basilica.
And a coin of Aspendos, c. 377-333 BC, showing scenes from the Olympic games and a delightful little triskelion.