Therme Vals is a hotel/spa in Vals, Switzerland. The architect, Peter Zumthor, is know for his desire for purity, clarity and simplicity, and it shows: the spa exists of nothing more than water, stone, light and sound:

Mountain, stone, water - building in the stone, building with stone, into the mountain, building out of the mountain, being inside the mountain... (- Peter Zumthor)

It all results in a natural and calming environment - ideal for a spa.

Photography by Pedro Varela.