Hierapolis

Hierapolis was originally a Phrygian cult centre of the Anatolian mother goddess of Cybele and later a Greek city. Its location was centred upon the remarkable and copious hot springs in classical Phrygia in southwestern Anatolia. Its extensive remains are adjacent to modern Pamukkale in Turkey.

The hot springs have been used as a spa since at least the 2nd century BCE, with many patrons retiring or dying there as evidenced by the large necropolis filled with tombs, most famously that of Marcus Aurelius Ammianos, which bears a relief depicting the earliest known example of a crank and rod mechanism, and the Tomb of Philip the Apostle.

It was added as a UNESCO World Heritage Site in 1988.