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

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

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

Loop Drive, Three Sisters on left, Camel Butte on right, Monument Valley Navajo Tribal Park, Utah, United States of America

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

John Ford's Point, Merrick Butte in background, Monument Valley Navajo Tribal Park, Utah, United States of America

Shoreline view of the historic Bainbridge Steel Dam near Ash Fork, Kaibab National Forest, Arizona, United States of America

View of the lake created by the historic Bainbridge Steel Dam near Ash Fork, Kaibab National Forest, Arizona, United States of America

Rills formed in the sandy beach at low tide as found on Bigge Island, Kimberley, Western Australia, Australia, Pacific

Mountainscape viewed from the top of Harrat volcanic plateau, AlUla, Medina Province, Saudi Arabia

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

Volcanic Activity

Norway, Senja, Norwegian flag with fjord and mountains in background

Norway, Senja, Man and two tents near Segla mountain at sunset

Norway, Senja, Two tents near Segla mountain at sunset

Norway, Senja, Panoramic view of Segla mountain at sunrise

Atlantic walrus (Odobenus rosmarus) with its most prominent feature the long tusks, coming close to check the photographer, Spitsbergen, Svalbard, Norwegian archipelago, Norway, Arctic Ocean