Commonly called Urfa, this historic city dates back at least 3,500 years, and Turkish legend has it that Abraham was born in a cave here. The cave and other important sites draw hundreds of thousands of Muslim visitors annually. Aside from its traditional architecture, Urfa’s main attractions are the Fish Pool, an old covered bazaar, the Throne of Nimrod fortress, and a small archaeological museum. A trip to nearby Göbekli Tepe is considered a must, as it is home to the world’s oldest temple, dating from more than 11,000 years ago.