Side is a resort town on Turkey’s southern Mediterranean coast. An ancient port city, it’s known for long beaches and Greco-Roman ruins. In the center are the remains of the 2nd-century Antique Theater, which seated up to 15,000. The white marble columns of the Hellenistic Temple of Athena stand near the harbor. Other sites are sprinkled throughout, with finds housed at the Side Museum, a restored Roman bath complex.