Salar de Uyuni (Uyuni Salt Flats)
Salar de Uyuni, in Bolivia, is the largest salt flat in the world, measuring some 10582 square kilometres in size. During the wet season, water from Lake Titicaca floods into the salt flat, causing it to become like a huge mirror.
The landscape is rather barren and bleached, giving it a rather other-worldly experience. Intrepid travellers may like the idea of staying at Palacio de Sal, which is built out of salt.