2. Brenners Park Hotel & Spa
For an old-world, European spa experience, head to Brenners Park Hotel & Spa in Baden-Baden, Germany, at the foot of the Black Forest. The historic elegance will make you feel like a 19th-century European aristocrat, but you’ll still have all the modern comforts. And where else will you find a medical spa offering holistic medicine and aesthetic dentistry? Be sure to visit the nearby Baden-Baden therapeutic thermal baths and springs.