Sweeping views of Central Park and the Hudson River from floor-to-ceiling windows aren’t the only thing that’ll put this 35th-floor hotel spa at the top of your list of favorites. First, book a 90-minute block of time, then consult with the top-notch staff to determine the best treatments to fill it. Asian-influenced services range from relaxing (the signature Thai Yoga Massage combines kneading with gentle yoga poses and assisted stretching) to rejuvenating (Ama Releasing Abhyanga loosens congestion and promises to free your body of toxins with a combination of exfoliation, cleansing and massage). While you’re alleviating tension, take advantage of complimentary amenities, including an Oriental Tea lounge, vitality pool and amethyst-crystal steam chamber, all awash in soothing beiges and golds.