Erosion created the Grand Canyon of the Congo, Diosso Gorge, Pointe-Noire, Republic of the Congo, Africa

Erosion created the Grand Canyon of the Congo, Diosso Gorge, Pointe-Noire, Republic of the Congo, Africa

Rodas Fault geological feature, Cies Islands, Atlantic Islands Galicia Maritime Terrestrial National Park, Galicia, Spain, Europe

Fossilised sand dune rock structure, Los Escullos, Cabo de Gata natural park, Almeria, Spain, Europe

Erosion created the Grand Canyon of the Congo, Diosso Gorge, Pointe-Noire, Republic of the Congo, Africa

The stacks of Duncansby, John o Groats, Highlands, Scotland, United Kingdom, Europe

Belcher glacier, Devon island, Nunavut, Canadian Arctic, Canada, North America

Alpine creek flowing through wildflower meadows along the Ptarmigan Cirque Trail in summer, Mount Arethusa, Kananaskis Country, Alberta, Canadian Rockies, Canada, North America

A view of SnA�fellsjokull in the Snaefellsnes Peninsula at sunset, Iceland, Polar Regions

Panorama of Kok-Moinok Canyon, a clay-sand structure formed on the slopes of arid mountains cut by water streams, Kyrgyzstan, Central Asia, Asia

Floating icebergs, Ilulissat Icefjord, UNESCO World Heritage Site, Western Greenland, Denmark, Polar Regions

Icebergs with dark skies, Antarctica, Polar Regions

Aerial of Potter glacier, Tierra del Fuego, Chile, South America

The Little Teepees on the north side of Haystack Mesa in Petrified Forest National Park, Arizona, United States of America, North America

Sunrise on Magdalena Island, Magallanes Region, Punta Arenas, Chile, South America

Atacama Giant, geoglyph, Atacama desert, Chile, South America

Arabian camel in the Judean Desert, Israel

Steam rises from lava flowing into the sea, Hawaii