Turkey: Hierapolis
Besides the white terraces of Pamukalle, you get 2 for 1 attractions here with the ancient ruins of Hierapolis, a city founded above the white travertine pools in 190 BC. The city prospered during the 2nd-3rd century AD, when it was built into a massive spa center with all the natural hot springs. There is a spectacular well-preserved Hierapolis Theater, built during the reign of Roman Emperors Hadrian and Septimius Severus. There are collonnaded pools, and a necropolis, and the Temple of Apollo. Many come here to bath in the famed Antique Pool where the hot spring water flows past sunk columns and antique stone plates. The baths were constructed with huge stone blocks without the use of cement and consisted of various closed and/or open sections linked together. Hierapolis together with the travertine terraces of Pamukkale is a UNESCO World Heritage Sire.