This is the incredible moment a woman rides a bicycle in the world's largest salt flat, the Salar de Uyuni, in Bolivia on April 1. The 4,086-square-mile salt flat becomes a natural mirror when rain ...

See All Key Ideas Dionicio Colque, 42, has fond memories of growing up on the edge of Salar de Uyuni in Bolivia. It’s the world’s largest salt flat, spanning about 10,500 square kilometers ...