Big isn't always better, but it's hard not to love the sheer scale of the newly opened Merano Thermal Baths (
thermemeran.it) in Italy's mountainous South Tyrol region. Designed by celebrated Italian architect Matteo Thun, the expansive, steel-and-glass complex encompasses 25 indoor and outdoor sulfur-infused pools, fed by a thermal source located 2,350 m underground. The hot spring, which keeps the baths at a cozy 33°C, was originally discovered in 1836. All-natural therapiesincluding apple-bud baths, radon water massages and grape mudpacksare available alongside medical treatments for such ailments as rheumatism and hypertension. These reinvigorating therapies are offered in two dozen rooms overlooking a park dotted with lily ponds and rose gardens, with snowcapped Alpine peaks just beyond. There are also saunas, steam rooms and a gym. An on-site restaurant serves healthy fare, and the spa also operates an eco-friendly hotel. Given its size, you'll probably need to stay overnight to appreciate everything Merano has to offer.