Among its natural wonders are the Salar de Uyuni, the world's largest salt flat; Lake Titicaca ... create its famous mirror effect, making this the best time to travel to Bolivia if you're ...

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.