Pamukkale, Turkey

Pamukkale, meaning "cotton castle" in Turkish, is a natural site in Denizli Province in southwestern Turkey. The city contains hot springs and travertines, terraces of carbonate minerals left by the flowing water. There are dramatic travertine terraces dotted all around the globe, from China to Iran, the USA to Afghanistan. But nowhere else in the world can visitors enjoy exploring both picturesque travertine formations, built up over the millennia from limestone deposited by the abundant hot springs, and the colonnaded streets, temples, bath houses, necropolis and theatre of the remains of an idyllically located Greek-Roman spa city, Hierapolis. You can even bathe, as the Romans once did, in a picturesque pool filled with warm (around 36C), mineral rich waters and swim amongst submerged columns of great antiquity.