Also known as the Salar de Tunupa, the world's largest salt flat extends over 10,582 square kilometers (4,086 sq. miles) in the southwest of Bolivia. 5½  hours from the city of Potosí. Formed from dried up prehistoric lakes, it's dotted with some 30 islands, and is especially something to see in the rainy season (late autumn through early spring), covered as it is with a mirrorlike layer of water - an Instagram natural! There are a number of hotels nearby, some built out of blocks of salt.

It's one of 15 of the World's Best Lessert Known Travel Wonders from Tripatini blogger Megan Sashyl.