Pamukkale Cotton Castle

Pamukkale, meaning Cotton Castle in Turkish, is Turkey's most famous natural landmark: a hillside of brilliant white calcite terraces formed by calcium-rich thermal springs that have been depositing travertine for hundreds of thousands of years in the Denizli province, approximately 280km north of Antalya. The site is included on the UNESCO World Heritage list together with the adjacent Greco-Roman city of Hierapolis, built by the Attalid kings of Pergamon in the 2nd century BC on the thermal plateau and subsequently expanded extensively under Roman rule. The hot spring water, which flows at 35–36°C, still courses through shallow pools on the terraces, and visitors may walk barefoot along designated routes — shoes must be removed at the entry gate to protect the calcium formations. The most photographed upper terraces with their shallow milky-blue bathing pools are best seen in morning light when the white calcite is at its most brilliant. Hierapolis above the terraces is a substantial ancient city with a fully walkable main street, an exceptionally large theatre with a capacity of 12,000, an extensive necropolis stretching north of the city walls (one of the largest in the ancient world), a martyrium built on the site of the apostle Philip's execution, and the Antique Pool — a thermal swimming pool where bathers float over submerged Roman columns toppled by earthquake. The Hierapolis Archaeological Museum, housed in a former Roman bath complex, holds an outstanding collection of sculpture, sarcophagi, and architectural fragments. From Antalya, Pamukkale is most practically visited on an organized day tour departing around 06:00–07:00 and returning by 21:00–22:00, covering 14–16 hours total. An overnight stay in Denizli or Pamukkale village allows a far more relaxed itinerary and access to the village's many hotels with private thermal pools fed from the same hot springs.