Salar de Uyuni ( Salar de Tunupa) - Southwest Bolivia,

Salar de Uyuni (or Salar de Tunupa) is the world's largest salt flat at 10,582 square kilometers (4,086 sq mi). It is located in the Daniel Campos Province in Potosí in southwest Bolivia, near the crest of the Andes and is at an altitude of 3,656 meters (11,995 ft) above sea level.