Spain Rio Tinto
McMurdo Dry Valleys (Antarctica)
The Richat Structure, near Ouadane, Mauritania
Rotorua, New Zealand
Fly Geyser, Reno
Spotted Lake, Osoyoos, British Columbia
Kauai, Hawaii
Mount Roraima (Venezuela, Brazil and Guyana)
http://dunia-panas.blogspot.com/2010/10/9-foto-markas-alien-yang-diyakini-nasa.html