Australia's Amazing Bioluminescent Lake. An unusually high concentration of Noctiluca scintillans, a bioluminescent microorganism, turned the water a bright, glowing, ethereal blue. (i did not type the description. this is repinned from somebody else.)
Pamukkale (‘cotton castle’ in Turkish) is a natural site in Denizli Province, Turkey, containing hot springs and travertines, terraces of carbonate minerals left by the flowing water. People have bathed in its pools for thousands of years.