This building, a hotel in a remote Bolivian salt desert, is constructed solely of salt blocks!
The hotel, seen above on July 14, is among a handful constructed solely of salt blocks on the white plains of the Salar de Uyuni in southwestern Bolivia.
The 4,085 square-mile (10,580 square-kilometer) region is the world's largest salt desert. The desert was once a lake 40,000 years ago, and it is now a hot spot for adventure tourism.
http://www.jorgegroup.pl/images/wieliczka1.jpg
the last time i was there they encouraged us to lick the walls ;)
NO WATER ALLOWED