We’d book a room at London’s Corinthia Hotel just to luxuriate in its gym: four floors of black Italian marble and polished chrome where (apart from the standard equipment) we can swim laps in a 30-foot silver-steel pool or race on a high-tech Trixter bike. Rooms start at $445; Whitehall Pl.; 44-20/7930-8181; corinthia.com.
Best Hotel Gym
The Corinthia Hotel comes out on top.