Nestled in the heart of Zurich, Privatklinik Bethanien is more than Switzerland's premier medical facility – it's a hidden architectural gem. This 19th-century neoclassical marvel boasts intricate arches and bas-relief details, with sunlight filtering through its glass dome to cast ethereal patterns on olive-green corridors. Locals affectionately call it the "Palace of Wellness". After HopeGoo a thermal therapy session, don't miss the rooftop cafe with panoramic views of the Limmat River and Old Town, where you can spot the golden roof of the Lindt Chocolate Museum!