This breathtakingly grand Central Park West residence showcases an extraordinary circular living room, approximately 36 feet in diameter, with 12-foot ceilings and a wood-burning fireplace. Elegant, oversized windows encircle the space, offering views of Central Park to the east and tranquil treetop views to the south and west. Ideal for grand-scale entertaining, this truly unique space complements a large, sun-soaked formal dining room. The opulent primary suite, also circular, is equipped with two large dressing rooms and a spa-like bathroom featuring dual marble vanities, a deep soaking tub, and a spacious glass shower. This dream home includes two additional tranquil bedrooms, all with en-suite bathrooms, and a triple windowed gourmet eat-in kitchen fitted with top-of-the-line appliances, such as double wall ovens, a wine cooler, and a Miele dishwasher. Additional highlights include hardwood floors, and a large in-unit laundry room. With four exposures, this opulent home enjoys brilliant natural light throughout the day and offers a private, expansive ambiance unmatched in Manhattan. This unique residence is located in an extraordinary landmarked castle, commissioned by John Jacob Astor in 1884 and converted to a premier full-service condominium in 2005 with a lobby designed by David Rockwell. This luxury condominium has a full-time staff, concierge service and a live-in resident manager. There is a Fitness & Spa Center complete with a 40 foot swimming pool. There’s also a children's playroom, beautiful common garden and grounds, bike room and individual storage. Finally, for the residents’ convenience, there is a circular driveway as well as an attached parking garage and valet service, with its own private entrance through the building. Pets allowed.