Built by Carrere & Hastings in 1901, this timeless 25 ft. limestone mansion houses a one of a kind 2 bedroom 2.5 bath duplex home on the 3rd and 4th floors. Steps off Madison Avenue, up your key locked elevator, enter into a grand and welcoming foyer. This level includes a spacious living room with juliet balconies, wood burning marble fireplace, wet bar, powder room, media room and two bedrooms. Custom details throughout include coffered ceilings, antique crown molding, and handcrafted mahogany. The serene and sunny master retreat offers a wood burning fireplace, 3 Victorian windows, custom closets and an en-suite marble bathroom with double sinks, Jacuzzi, steam shower and heated floors. The hidden second bedroom is entered through custom designed bookshelves and also has an en-suite marble bath. A mahogany staircase leads to the second floor which includes the windowed chef's kitchen highlighted by beveled glass cabinets and top of the line appliances. The sun drenched full dining room with a limestone wood burning fireplace, spacious library and butler's pantry are perfect for entertaining. Separate laundry room. Truly special from top to bottom.