The Corniche Penthouse, Albert Embankment, London, UK

With this modern tower’s position right on a bend in the River Thames, you’d almost think you were suspended over the water. As you peer out through the curved glass walls of its Foster + Partners–designed penthouse, looking directly down the river in each direction, you can spot landmarks like the Houses of Parliament and London Eye. The Corniche Penthouse takes up the 25th and 26th floors of the tower, as well as commanding the entire rooftop terrace. Across its two floors, which cover 6,903 sq ft, you’ll find four bedrooms, living and dining areas to suit every occasion, and two kitchens—one for dining in and the other for behind-the-scenes culinary preparation. Each space is distinguished by its rounded walls, floor-to-ceiling windows and attention to detail. TG Studio took inspiration from the river for the design of its interiors, which combine a serene color palette of stone and taupe with tactile fabrics, wood and marble chosen for its water-like ripple effect. Details include a baby grand piano and temperature-controlled wine wall. Elsewhere in the building, residence amenities include an infinity pool, fitness center and spa.