An curved arrow pointing right. At a staggering 4,086 square miles, Bolivia's Salar de Uyuni is the biggest salt flat in the world. During the rainy season, it essentially turns into a giant mirror.

For one of the most incredible naturally occurring sights and experiences in the world, head to South America's epic, ...

including Lake Minchin, which once covered the area, started to evaporate. Over thousands of years, as these lakes dried up, ...

Until we start sending commercial flights to the moon, the Kachi Lodge on Bolivia ... of salt—an estimated 10 billion metric tons of it—which was left behind as an ancient lake dried up.