Pamukkale-Hierapolis, located in the Denizli Province of southwestern Turkey, represents a uniquely integrated cultural and natural heritage site where the striking white travertine terraces, formed over millennia by the deposition of calcium carbonate from mineral-rich thermal waters, coexist with the extensive archaeological remains of the ancient Greco-Roman city of Hierapolis—founded in the 2nd century BCE—which include a remarkably preserved theatre, elaborate necropolis, thermal baths, and temples, collectively offering valuable insights into the religious, social, and architectural practices of the time while illustrating the continuous interaction between human activity and a dynamic geological environment.