The key to the magnificent travertine formations that are partly white as a cloud (Pamukkale literally means castle of cloud) and partly reflect the colors of the rainbow is a river flowing from the southern slope of Çaldağ Mountain. Due to the high calcium oxide content of its water, limestone is deposited in the region through which it flows. Pamukkale is also known for its spas and a healing and revitalizing effect has always been attributed to its thermal waters.

Pamukkale was built around the ruins of the ancient city of Hierapolis and its well-preserved necropolis. In a small room of the old hamam, there is a museum where ancient and modern relics are displayed. Do not leave Pamukkale without seeing the Denizli cock, symbol of the city.