Palacio de Sal

Palacio de Sal stands at Colchani on the eastern rim of the Salar de Uyuni, the 10,000-square-kilometre salt flat that is Bolivia's most surreal landscape, and the building itself is part of the spectacle: walls, domed ceilings, floors, beds and much of the furniture are cut from salt blocks quarried on the flat. The hotel descends from the legendary 1990s salt lodge that once stood out on the salar itself, relocated to the shore for environmental reasons, and it remains the most famous of the genre it invented.

Rooms are cave-like and quietly theatrical, with salt-crystal walls, warm lighting and heating that matters—altiplano nights fall far below freezing. The domed public spaces hold a restaurant serving Andean cooking, including salt-baked llama, and windows that frame the white horizon. A small spa offers salt-scrub treatments, and there is even a nine-hole salt-flat golf challenge for the novelty-minded.

The location is the logistics prize: sunrise and sunset trips onto the salar, the rainy-season mirror effect of January to March, Incahuasi island's cacti and the train cemetery are all at hand, with lodge staff and local operators arranging 4x4 excursions. Service and food are honest rather than polished—this is remote-altiplano hospitality—but sleeping inside the salt at the edge of the void remains one of South America's singular hotel experiences.