An unusual cloud formation over Kalamiones Beach near Kassiopia on the northeast coast of Corfu, Ionian Islands, Greek Islands, Greece, Europe

Double rainbow and rainstorm, Namu atoll, Marshall Islands, Pacific

Lorry driving down the frozen Heilongjiang River in the city of Heihe on the Chinese Russian border, Heilongjiang Province, China, Asia

Unusual and beautiful cloud formations in Denali National Park, Alaska, USA

Turquoise Lake Louise with Mount Fairview, view from Icefield Parkway, Banff National Park, Rocky Mountains, Alberta, Canada, North America

Clearing storm clouds over Shiprock in the high-desert plain of the Navajo Nation in New Mexico, USA, Shiprock, New Mexico, United States of America

View of geometric patterns on rocky hills referred to as Brain Rocks, against a cloudy sky forming part of the alien landscape of amazing lines, contours and shapes in the wondrous area known as White Pocket, situated in Arizona, Arizona, United States of America

Surreal landscape of White Pocket with stormy clouds gathering overtop. They are comprised of swirling, multicolured Navajo Limestone with domes, hoodoos and potholes, Arizona, United States of America

Storm clouds gather over Shiprock, New Mexico. The rising suns illuminates this sacred rock of Navajo people, Shiprock, New Mexico, United States of America

California, El Mirage, Dry lake bed, Cracked mud in warm afternoon lighting.

California, El Mirage, Tree snag and cracked mud in dry lake bed.