Whether you're a guest or not, you can still enjoy some of the exquisite amenities of Hotel Copernicus, including the exclusive spa in the hotel's gorgeous Gothic cellars. In partnership with elite French cosmetics firm L'Occitane, the experience begins as soon as you enter and the scent hits your nose. Wellness treatments are offered for men and women, singles and pairs, including an array of facials and full body massages. Signing on for a spa treatment gets you free access to the sauna and swimming pool as well (otherwise off limits to non-guests).