5. Pamukkale Hot Springs, Turkey

Pamukkale means “The Cotton Castle” or “The Cotton Fortress” in Turkish, It is a natural site with snow white stalactites, hot springs and travertines and terraces of carbonate minerals left by the flowing water. It is widely known as the 8th Wonder of the World by Turkish people. To keep the travertines white it was forbidden to walk on them, but it’s possible to walk on some of them barefoot. This spot is a must-see for those who travel to Turkey, but you should hurry up to visit it ASAP because it may disappear in coming years.