One-of-a-kind Prewar Penthouse with 10-foot ceilings at 310 West 72nd Street.This rare duplex is a true house, offering elevator access to both the 16th and 17th floors, Southern exposure with open city views from all major rooms, including all four bedrooms. The welcoming entry foyer leads to a loft-like great room with four oversized Marvin windows, soaring ceilings and immaculate hard wood floors.Expansive chef's kitchen with separate breakfast area offers numerous custom cabinets, stone counters and backsplashes and top of the line appliances. There are two large sinks, Subzero refrigerator, Viking stove, Miele dishwasher and washer & dryer. Small appliances are hidden in dedicated custom-built cabinets along with the central vacuum!The primary bedroom offers North and South exposures, abundant closet space and an oversized Onyx clad bathroom with separate walk-in shower, deep bathtub, vanity sink and two windows. The sundrenched second and third bedrooms offer ample storage and share an oversized bathroom with a stunning large window. A staff room or home office is perfectly located between the great room and kitchen, as well as a powder room and generous pantry closet. The architecturally beautiful staircase leads to the wonderful terrace, as well as the corner den/ 4th bedroom suite with its own windowed bathroom and access to the outdoors through two sets of sliding glass doors.This "House in the Sky" has gone through significant renovations through the years, with central air conditioning installed, updated electrical including a dedicated 200 watts riser, custom Marvin windows, central vacuum, oak hardwood floors and elevator access to both floors. Storage cage transfers with the apartment sale ($60 monthly fee).Located between West End Avenue and Riverside Drive, 310 West 72nd Street is an Italian Renaissance palazzo-style apartment building built in 1924 and designed by Robert T. Lyons. Lyon's notable work includes the "St. Urban" at 285 Central Park West at 89th Street, in 1906 and in partnership with Bing & Bing built "the tallest apartment building in the world" at 903 Park Avenue at 79th Street in 1916. Today 310 West 72nd Street is an elegant full-serviced cooperative with live-in superintendent. Shareholders enjoy a community room/playroom, bike storage, central laundry room, private storage and its highly desirable location across the street from the Hudson Riverside Park and the dog-run park!