Salar de Uyuni is the world’s largest salt flat at 10,582 square kilometers (4,086 sq mi)! Located in the Potosí and Oruro departments in southwest Bolivia, every year covers with a thin layer of water and when it happens, it turns into the largest mirror on Earth.
Images credit: Takaki Watanabe
The Salar is near the crest of the Andes, is elevated 3,656 meters (11,995 ft) above mean sea level and was formed as a result of transformations between several prehistoric lakes.
Image credit: Wikimedia Commons