Known as one of Manhattan’s “Towers of Power,” 740 Park Avenue is legendary for its ultra-luxe residences and wealthy inhabitants. Developed by James T. Lee, grandfather of Jacqueline Kennedy Onassis, and designed by famed architects Rosario Candela and Arthur Loomis Harmon, this 19-story limestone building opened in 1931. Home to just 31 sprawling units—duplexes, triplexes, and penthouses—each features grand galleries, wood-paneled rooms, fireplaces, and expansive views. With a history of housing billionaires, royalty, and influential figures, 740 Park Avenue remains a symbol of ultimate exclusivity and urban luxury.