Volcanic cinder hills in Coconino National Forest, Arizona, USA

Petrified Waterfall at dusk, Hierve el Agua, San Lorenzo Albarradas, Oaxaca State, Mexico

Boulder pile in a valley leading to Dead Wash, Petrified Forest National Park, Arizona, United States of America

Panoramic of a huge boab tree (Adansonia gregorii), growing in Careening Bay, Kimberley, Western Australia, Australia, Pacific

Extraordinary sandstone rock structure called Dancing Rocks in the Sharaan Nature Reserve, AlUla, Medina Province, Saudi Arabia

Extraordinary sandstone rock structure called Dancing Rocks in the Sharaan Nature Reserve, AlUla, Medina Province, Saudi Arabia

Aerial of the Trou du Natron volcanic crater and its natron lakes, Tibesti Mountains, Chad

Aerial over Trou du Natron with volcano Tousside in the background, Tibesti Mountains, Chad

Aerial of the Trou du Natron volcanic crater and its natron lakes, Tibesti Mountains, Chad

Aerial of beautiful rock formations around Zouar, Tibesti Mountains, Chad

Aerial of a beautiful sand dune in the Tibesti Mountains, Chad

North Window, Elephant Butte on left, Cly Butte on right, Monument Valley Navajo Tribal Park, Utah, United States of America

The Thumb, Monument Valley Navajo Tribal Park, Utah, United States of America

view of Volcanoes and the Volcanic landscape with the Atlantic Ocean in the Timanfaya national park in Lanzarote in the Canary Islands, Spain

Views of Austfonna, an ice cap located on Nordaustlandet in the Svalbard archipelago in Norway, Arctic, Europe

Tousside volcano above Trou du Natron, Tibesti Mountains, Chad

Grand Canyon, from Hermit Road near Great Mohave Wall Viewpoint, Grand Canyon National Park, UNESCO World Heritage Site, Arizona, United States of America, North America

Aerial view of saltmarsh at low tide near Cadiz, Spain

Aerial view of saltmarsh at low tide near Cadiz, Spain

Hoodoos of Valley of Dreams take on fantastical shapes after eons of erosion from wind and rain. This hoodoo is named Alien Throne, with a beautiful sunset sky, Albuquerque, New Mexico, United States of America

Hoodoos and formations in Valley of Dreams in a remote area of New Mexico at sunset. The hoodoos are formed by erosive forces like wind and rain, Albuquerque, New Mexico, United States of America

Hoodoos of Valley of Dreams take on fantastical shapes after eons of erosion from wind and rain, Albuquerque, New Mexico, United States of America

Hoodoos and formations of Valley of Dreams in a remote area of New Mexico. The hoodoos are formed by erosive forces like wind and rain, Albuquerque, New Mexico, United States of America