Designed in 1899 by Jacques Gros, the dope-ass health spa/hotel has a perfect city location overlooking Lake Zürich and the Alps. The grand old hotel has been re-imagined as a modern luxury hotel by a star team of professionals -- architecture by London’s Foster and Partners, interior design by United Designers, also of London, and the spa concept by spa-industry visionary, Arizona-based Sylvia Sepielli.

The topmost, 4,300 square-foot (400 square-meter) Maestro Suite channels the style of Herbert von Karajan. The sweeping two-level suite with dashing classical undertones features red leather chairs, dark timbers, a circular tower dining room, pale-marble bathrooms with whirlpools and steam showers (and one with a sauna), massive windows and a lounge-style terrace.

The top floor of the spa wing, the Masina Suite gets its dramatic inspiration from Giulietta Masina, actress and wife of Federico Fellini. Night-blue and soft white evoke a feel of elegance and smoky glamour. A large Fendi sofa and a flat-screen TV are perfect for film noir nights. Floor-to-ceiling windows add further drama. Orange sofas, dark wood panels and pink furniture adorn Suite 101 created to reflect the legacy of the Rolling Stones. The decor has a retro vibe and an edge with distinctive, casual luxury. The suite includes a bedroom, living room, dining room, an ensuite kitchen and meeting room for 10.