The cotton castle
Pamukkale
A hillside of white mineral terraces holding pale blue pools, formed by hot springs in western Turkey.

Why Pamukkale is travertine white
Pamukkale means cotton castle in Turkish. It is a slope in south-western Turkey where hot spring water, rich in dissolved calcium carbonate, runs down the hillside. As the water cools it leaves behind a white stone called travertine. Over thousands of years this has built a cascade of white shelves and basins, filled with shallow water that looks pale blue against the white. From a distance the hill seems to be covered in snow or cotton. At the top are the ruins of Hierapolis, a spa city of Greek and Roman times. Visitors must walk the terraces barefoot to protect them. The site became a World Heritage Site in 1988.
Values are fair approximations of what the eye sees there, not measurements.
Colours tied to Pamukkale
Written by the Rang desk with AI assistance. Background: "Pamukkale" on Wikipedia. If you know Pamukkale and we have it wrong, tell us.
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