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.

Nestled in the heart of South America, Bolivia may not have a coastline ... the world's largest salt flat; Lake Titicaca, shared with Peru and considered the highest navigable lake on the planet ...

FUKUTSU, Fukuoka Prefecture--This coastal city is trying to woo tourists in Japan and beyond by pitching its version of Bolivia's world-famous Uyuni Salt Flats. Fukutsu’s “sea mirror ...