Pamukkale is a town in Western Turkey and its name means cotton castle. Part of the landscape looks like a large terrace of ice, but it is in fact a travertine terrace formed by mineral rich water cascading down a steep valley.
When I went, you could walk on the terraces, barefoot and at your own risk, because they were rather slippery. Now I believe you can only look from above, well done turkey for protecting this very unusual Unesco site. On a sunny day the surface looks turquoise, but here under a grey sky, and looking into the misty distance the landscape looks quite spare.