This sleek boutique hotel is a hidden gem in a quiet but trendy part of town, and it's just five minutes by tram from the city center. The former industrial building it's in has an elegant grey-blue facade; the interiors exude calm through minimalist decor, pure lines, and neutral color schemes that were created by the Swiss artist Jean Pfaff, known for his monochromatic paintings. The garden pavilion rooms are cool and spacious, set around inner courtyards of artfully planted birch trees and Zen-inspired ponds. For a real treat, and bird's-eye city views, spring for the penthouse suite.