This majestic Fifth Avenue duplex Penthouse in one of New York's most renowned buildings features over 6,100sf of expansive living space replete with soaring ceilings ready for custom design. Encompassing the entire southern face of the building on the 64th and 65th floors with panoramic skyline and cityscape views, this cavernous home features 5+ grand bedroom suites and entertainment rooms framed by floor-to-ceiling windows throughout. This home is an irreplaceable gem and represents great value.721 Fifth Avenue is a world-renowned full-service white-glove condominium with a premier Fifth Avenue address. Located directly across from the highly anticipated Aman Resorts, the building offers incredible amenities and services in a prime residential enclave including 24-hr doorman & concierge, fitness center, valet, & maid service.