The Chullpas of Sillustani, Umayo Lagoon near Lake Titicaca, Puno, Peru
View of waterfall, natural pools and bridge at Watkins Glen State Park, New York state, USA
Rock formation with limestone cliffs and dunes, White Desert National Park, Farafra, Egypt
Aerial view of the huge granite hills, Cerros de Mavecure, Eastern Colombia
Granite rock needle in the Erongo Mountains west of Omaruru, Farm Omandumba, Namibia
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