Pamukkale, Turkey

Pamukkale, meaning "cotton castle" in Turkish, is a natural site and attraction in south-western Turkey in the Denizli Province. The ancient city of Hierapolis was built on top of the white "castle" which is in total about 2700 meters long and 160m high. It can be seen from a great distance, eg. when driving down the hills on the opposite side of the valley to the town of Denizli, which is 20 km away. Pamukkale is located in Turkey's Inner Aegean region, in the River Menderes valley, which enjoys a temperate climate over the greater part of the year. Pamukkale is a famous tourist attraction of Turkey. Tourists travel from the coast of Antalya and the Aegean Sea to Pamukkale as it is one of two World Heritage Sites in Turkey, together with Hierapolis. The underground volcanic activity which causes the hot springs also caused carbon dioxide to seep into a cave which as a result was called the Plutonium meaning place of the god, Pluto....
(more on www.wikipedia.org http://www.pamukkale.gov.tr/en/)