The supremely chic indoor-outdoor lounge area features works by Wendell Castle, Christopher Schanck, and Patrick Naggar
The entire 96th floor of 432 Park Avenue is also the city’s highest current listing, and it comes totally furnished with pieces from Fendi, Bentley, and Hermès
The 24,000-square-foot estate was also home to Microsoft co-founder Paul Allen
See awe-inspiring portraits by Renaissance masters such as Raphael, Bronzino, Pontormo, Salviati, and Cellini