Rare Manhattan stately Salon residence, designed for large scale private entertaining, with architectural pedigree and expansion potential. A European style, private entertaining estate on one of the Upper East Side's most distinguished townhouse blocks. With an exceptional 90 feet in depth, this 1872 mansion represents a rare marriage of Gilded Age prominence and modern refinement. Meticulously restored to museum standards, the residence spans over 8,000 square feet, offering an extraordinary 90-foot depth and a Neo-Georgian facade reimagined by the esteemed R.D. Graham. The heart of this stately home is the magnificent Grand Parlor Salon level - a suite of five interconnected formal rooms designed for large scale private entertaining. This enfilade, soaring with 14-foot ceilings and spanning an impressive 90 feet, creates a seamless flow of light and scale. Highlights include a Belle Époque bar in American Walnut crowned by a custom Lalique skylight, a formal dining room, generous living room, and a fully integrated sound system. Anchoring one wing is a stunningly stately library clad in original English pine with a wood-burning fireplace serving as centerpiece for this retreat of quiet sophistication. Beyond the entertaining floors, the home features five bedrooms, five full bathrooms, three powder rooms, and a total of eight fireplaces. Natural light filters throughout tall windows and modernity is woven throughout, from the high-speed elevator, private gym and temperature-controlled wine room, to state-of-the-art AV systems, security and snow melting system. A magical private rooftop terrace offers a secluded al fresco sanctuary, while unused FAR allows for a potential 5th-floor expansion. This corner of the Upper East Side has long been the preferred enclave for those who shape history. From the dignified former residences of Presidents Roosevelt, Nixon, and Trump to the storied estates of the Rockefeller and Koch dynasties, these blocks represent a rare intersection of political power and global influence. Located moments from Central Park, the Met, the Frick Collection, and the worldclass vitrines of Madison Avenue, this is a legacy property designed for the ultimate collector of rare and historic assets.