Radisson Blu Waterfront Hotel (Photo: Radisson Blu Stockholm Waterfront)The piece de resistance at this 414-room hotel of white polished stone and rough black stone is its attached conference center—a glass structure with an exterior made up of 13 miles of semi-transparent stainless steel rods. They reflect the sky and water, radically change the skyline, and are what architect Hans Forsmark describes as "a reminiscence of the Nordic Light." The interiors of the hotel, which opened in 2011, follow straight lines and geometric precision. 800/333-3333, radissonblu.com, from $155 per night.
