Magnificent duplex designed by Bunny Williams and architect Nasser Nakib located in one of Fifth Avenue's premier limestone co-ops, built in 1916 by Starret and Van Vleck, with over 40 feet of frontage and views of Central Park. Soaring 11-foot ceilings, superb classical details, hardware, custom moldings and impeccable herringbone floors abound throughout this gracious home. A private entrance opens into the impressive gallery replete with a large, marble powder room, Parquet de Versailles floors and an ornate sweeping staircase. The voluminous entertaining rooms radiate off the central gallery through mahogany double doors. The grand living room and handsome paneled library feature gas fireplaces with beautiful mantels and oversize windows with direct Central Park views. The stately formal dining room is luxurious and inviting, with a gas fireplace and Juliet balcony. Adjacent is the expansive eat-in, chef's kitchen with a cheerful breakfast room, pantry, abundant storage and top of the line appliances including: Thermador and GE ovens, Sub Zero refrigerator and a Miele dishwasher. A convenient back staircase leads from the kitchen to a full-sized laundry room with service elevator and a staff room with en-suite bath. A stunning, curved architectural staircase with a beautiful balustrade leads from the gallery up to the elegant private quarters of the apartment featuring 4 bedrooms all with en-suite baths. The second floor landing has a spacious cedar closet and a separate elevator landing and entrance. The master suite features a spacious sun flooded bedroom with direct park views, gas fireplace and his and her marble baths--also with direct park views. There is an enormous dressing room with adjacent walk-in closet. An additional upstairs library with media center and wet bar provides another great entertaining room or can be used as a large fourth bedroom with en-suite bath. There is central air throughout the apartment, a 300 SF storage room and parking.