This grand 14-room duplex apartment is located on the 6th and 7th floors of 820 Park Avenue on the Upper East Side of New York, NY. It features 5 bedrooms, 5.5 bathrooms, a 26 foot long entrance gallery with marble floors, curved staircase, 36′ long corner paneled living room with 3 huge windows and a wood burning fireplace, wood paneled library with custom built-ins, formal dining room, gourmet kitchen with pantry, den/informal dining room with custom built-ins, laundry room and a media/entertainment room with built-in projection screen. The sumptuous master suite features two walk-in closets, luxurious bathroom with marble floors and free-standing sink and a home office with adjacent bar area. It is listed at $24,750,000.