Pamukkale, 19 km (12 miles) north of Denizli, is Turkey's foremost mineral-bath spa because of its natural beauty: hot calcium-laden waters spring from the earth and cascade over a cliff. As they cool they form dramatic travertines of hard, brilliantly white calcium that form pools. Pamukkale has been used as a spa since the second century BC.

via Earth My Mother http://www.facebook.com/photo.php?fbid=503068346424452&set=a.488597571204863.1073741828.488593791205241&type=1