The password is "Penthouse." Create park-side penthouse perfection in this spectacular four-bedroom, three-and-a-half-bathroom duplex awaiting your personal touch directly on Madison Square Park. Here, you'll enjoy a townhouse-in-the-sky lifestyle with key-locked elevator access, sprawling interiors and approximately 1,500 square feet of private outdoor space in an exclusive full-service condominium. Imagine sumptuous living and lavish entertaining where every outlook is a picture postcard — from the sleek New York Merchandise Mart and the magnificent gilded towers of the New York Life and Met Life buildings to the iconic Flatiron building and the verdant vistas of Madison Square Park. Inside the 3,564-square-foot duplex, you'll find a showplace-in-the-making filled with herringbone hardwood floors, walls of windows, and furnishings owned by the late Gianni Versace himself (Yes, they're available with the home). Awake in the regal owner's retreat on the upper level featuring a nearly 80-foot-long wraparound terrace invites you to linger over morning coffee and jaw-dropping views. A spa bath and walk-in closet complete the elegant suite, while another bedroom on this floor is perfect as an office, nursery or a luxurious dressing room. Plan grand gatherings on the indoor-outdoor main level, where guests are greeted by a gracious gallery foyer lined with closets and a powder room. Ahead, the great room sets the stage for newsworthy celebrations followed by after-dinner drinks overlooking the sights of the city on the adjacent 364-square-foot terrace. The massive eat-in kitchen accommodates dinner for two or twelve with equal ease. Down the hall, two more bedrooms with en suite baths and a large laundry room complete this unrivaled residence ready for your unique vision. 50 Madison Avenue is the perfect combination of a turn-of-the-century estate topped by eight contemporary luxury residences. Residents of the discreet, pet-friendly boutique enclave enjoy full-time doorman service, keyed elevator access, a package room, storage and a bike room. Located in ultra-desirable NoMad — surrounded by the Flatiron District, Gramercy, Chelsea and Union Square — this home is at the heart of desirable Manhattan living. Enjoy glorious outdoor space, a dog park and year-round events at Madison Square Park. Foodies will love the award-winning dining at The Clocktower, Eleven Madison Park and Gramercy Tavern, while gourmet shopping destinations Eataly, Whole Foods, Fairway, Trader Joe's and Morton Williams fill the nearby blocks. Transportation options abound with N/R/W, 4/5/6, L, F/M and PATH trains, excellent bus service and CitiBike stations all within easy reach.