Tschuggen Grand Hotel, Arosa, Switzerland
Arosa, Switzerland, is a magnet for winter sports, offering everything from downhill skiing to Nordic walking. With all those activities, it makes sense to have a world-class spa to soothe all those tired muscles. A four-story retreat awaits behind the sail-shaped windows, including a rock grotto, fire pit, and indoor and outdoor pools and saunas. Add private spa suites and an extensive spa menu with Ayurvedic and hot stone treatments, and you might spend the rest of your vacation inside.