Views. Terraces. Space. Amenities. The magical 12-room duplex penthouse with an awe inspiring wrap-around terrace and its own private outdoor pool sits high above the Hudson River, offering sparkling water views from every major room. A gracious entrance foyer with an elegant staircase leads to the double-height corner living room. Floor-to-ceiling windows provide unobstructed views as far as the eye can see. Adjacent to the living room, which also opens onto the dramatic entertaining terrace, a handsome firelit library with mesmerizing river views provides an ideal retreat for cozy evenings, and the elegant dining room, the perfect setting for formal or casual entertaining. The eat-in kitchen with stone countertops facilitate catering for entertaining and events and opens directly to the southeast terrace and pool. Upstairs, the luxuriously spacious river-view master suite features two baths and two enormous walk-in closets. Six additional ensuite bedrooms grace both levels. One Riverside offers owners white-glove service, a 40,000-square-foot athletic club and spa, 75-foot swimming pool, 38-foot rock-climbing wall, basketball and squash courts, two-lane bowling alley, lounge, and a golf simulator.