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Pamukkale, Turkey. Volcanic hot springs in this area form natural travertine rock, which over time has become a complex series of terraced pools. Turkey has to have some of the world's most incredible geology. Pamukk Turkey, Amazing Natural, Beautiful Places, Cotton Castles, Denizli Provinc, Travel, Pools, Pamukkal Turkey, Hot Spring
Badab-e Surt, Iran | Badab-e Surts terraces are made of travertine, which is a sedimentary rock deposited by flowing water from two distinct mineral springs. Thousands of years the water from these two springs had been streaming down from the mountain, it mixed up and gradually created a number of orange, red and yellow colored pools which now have the form of a staircase.