Antalya, a picturesque resort city on Turkey’s southern Mediterranean coast, is famed for its azure waters, luxurious hotels, and vibrant Old Harbor filled with yachts. Known as the Turquoise Coast, the region is steeped in history, with remnants from its Roman past such as Hadrian’s Gate, built in 130 A.D. to honor the emperor, and the 2nd-century Hidirlik Tower, which overlooks the harbor.