As archaeological fragments have shown, hot springs around the alpine town of Vals, Switzerland, have lured visitors since the Bronze Age. Fast forward a few thousand years, and today's tourists can tap into the same tradition of a steamy soak in therapeutic waters—naturally heated from geothermic sources to a soothing 86 degrees Fahrenheit—but in thoroughly modern accommodations masterminded by some of the world's best architects.
This Hotel Asked Some Of The World's Top Architects To Design Rooms