The flat expanse of the Grand Barra Depression, Djibouti, Africa

The flat expanse of the Grand Barra Depression, Djibouti, Africa

The flat expanse of the Grand Barra Depression, Djibouti, Africa

A herd of horses walks on the frozen lands of Mongolia, Central Asia, Asia

Pasture at sunset, Bronte Park, Tasmania, Australia, Pacific

The intertidal zone of the Quantock Coast, West Somerset, contains an abundance of geology and wildlife. It is a Site of Special Scientific Interest (SSSI) and is of international geological importance.

Long straight road in southern Wyoming, United States of America, North America

The flat expanse of the Grand Barra Depression, Djibouti, Africa

The flat expanse of the Grand Barra Depression, Djibouti, Africa

Mesquite Flat Sand Dunes, cracked clay and bushes, Death Valley National Park, California, USA, America

Blooming creosote bush, Mesquite Flat Sand Dunes, Death Valley National Park, California, USA, America

Four-wheel drive and reflection during the wet season (December-February) in Salar de Uyuni, the world's largest salt flat; Potosi Department, Bolivia

Salar de Uyuni, the world's largest salt flat, during the wet season (December-February); Potosi Department, Bolivia

Salar de Uyuni, the world's largest salt flat, during the wet season (December-February); Potosi Department, Bolivia

Salar de Uyuni, the world's largest salt flat, during the wet season (December-February); Potosi Department, Bolivia

The open highway leads into the mountain landscape in Western Iceland, Iceland

Salar de Uyuni, the world's largest salt flat, during the wet season (December-February); Potosi Department, Bolivia

Flags of countries participating in the Bolivia Dakar Rally on Salar de Uyuni, the world's largest salt flat; Potosi Department, Bolivia

Monument to the Dakar Rally at Salar de Uyuni, the world's largest salt flat; Potosi Department, Bolivia

Turquoise ocean water and golden sand on Keawakapu Beach, Wailea, Maui, Hawaii, United States of America

Salar de Uyuni, the world's largest salt flat, during the wet season (December-February); Potosi Department, Bolivia

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

California, Field of plowed soil ready for planting.