Travertines of Pamukkale
Pamukkale Travertines is a natural site in Denizli province, famous for its brilliant white terraces formed by calcium carbonate deposits from thermal waters over centuries. The name, meaning "cotton castle" in Turkish, comes from the area's snow-white, layered pools. It was designated a UNESCO World Heritage Site in 1988, along with the ancient city of Hierapolis. Pamukkale (559 m), Hierapolis (753 m), and Plutonium (487 m) are within walking distance.