Apartments priced from $4m - $5m

While 141 Fifth Avenue's classic Beaux Arts facade and gracefully curved shape is what makes it most recognizable, that gracious terra cotta exterior conceals a luxurious surprise -- 141 Fifth Avenue is home to some of the most elegant condominiums for sale in the Flatiron District.

Classically gracious pre-war design elements pair gracefully with the contemporary elegance in these luxury apartments, and 141 Fifth Avenue's amenities are every bit as up-to-date as the condominiums. The prime location is convenient to mass transit and the nightlife and dining of Greenwich Village and Chelsea.

180 East 93rd Street supports the belief that luxurious living can also be eco-friendly living. Built using sustainable materials, this stunning limestone and brick, LEED-certified condominium is distinctive, yet designed to respect the proportions and tastes of its Upper East Side environment. The inviting lobby, with its classically inspired columns and integrated marble floors, takes you from the hustle and bustle of New York City living and prepares you for the luxurious surroundings of your home, which includes a gourmet kitchen and marble master bath.

With Central Park as a front lawn and the passing parade of Fifth Avenue just steps away, the Plaza Residences artfully blends classic features with a modern aesthetic. Refined lifestyle can be enjoyed against a backdrop of high ceilings and period mantelpieces, with carefully laid walnut-bordered herringbone parquet floors. The beautiful New York City views are framed by historically accurate, double-insulated windows.

Twenty9th Park Madison is situated between Madison Avenue and Park Avenue South. Towering above its neighbors with a trendy restaurant at night, this building's shimmering glass reflects the scintillating glamour of cosmopolitan life. Residents enjoy the building's abundance of amenities, including an ultra-modern fitness center, 24-hour concierge, yoga room and roof-top lounge.

The Rushmore, located at 80 Riverside Boulevard, is a condominium building on Manhattan's Upper West Side, but also something of a world unto itself. Few NYC condos can match the full-spectrum luxury of the condominiums for sale at The Rushmore, and the wide array of apartment floor plans and available finishes allow owners to customize their living spaces to an extraordinary degree. There's more than luxurious apartments for sale going on here, though. The Rushmore's stellar amenities include an ultra-modern fitness center complete with indoor pool and a host of hotel-style conveniences.