Sometimes travelers just want to get away from it all, and there’s no better place for a much-needed respite than a wellness-oriented resort. Whether you’re looking for a mountaintop retreat or a spa escape in the midst of a city, many of the world’s best luxury wellness hotels can be found in Europe, from Iceland to Italy. Each has a different approach to its spa program and design, and each one will have you leaving the world behind in no time. If you’re looking for a memorable place to unwind, here are 15 of the best luxury wellness hotels in Europe.