57th St in New York that has listed ... She adds that the penthouse was originally two duplexes, but the team decided it made more sense as one ultraluxury four-floor unit instead.

The four-story “quadplex” of Steinway Tower overlooks Central Park and offers 360-degree views of New York City.

With interiors designed by Studio Sofield, the suggested floor plans features an “entertaining ... Its design is meant to evoke New York’s Gilded Age of the late 19th century, when the city ...

Rosie O'Donnell has finally managed to find a buyer for her New York City penthouse after two years ... spiral staircase leads from the 33rd floor to the 32nd floor, where two more bedrooms ...

The full-floor apartment, located on the 37th floor of a luxury Midtown Manhattan tower, was acquired by the government in ...

The mansion-size quadplex penthouse on the 80th through 83rd floors has multiple terraces and views across the city ...

A buyer of an $80 million penthouse at 520 Park Avenue is suing the developers over Extell’s view-obstructing skyscraper ...

Billionaire hedge fund manager Ken Griffin is seeking to sell a penthouse he owns at Zaha Hadid-designed One Thousand Museum.

The buyer, who in the fall purchased the penthouse at East 60th Street using the shell company Park Ave. Condo LLC, is ...

Towering over Billionaires’ Row in Manhattan is this one-of-a-kind penthouse, which just might be the most expensive listing ...

A newly listed penthouse along Manhattan’s Billionaires’ Row made a grand entrance to the local residential market on Thursday.

The full-floor Park Avenue condo has an extra-long balcony, 15-foot ceilings and oversized windows to take in the wide-angle ...