Price: $60 million
Location: New York
Square footage: 9,799
This full-floor penthouse at The Mark hotel on the Upper East Side was designed by the French interior designer Jacques Grange. The apartment features a massive formal living room with 26-foot ceilings, a fireplace and wet bar; the master suite has a dual-sided fireplace, sitting room, walk-in closets and his-and-hers master baths.
The apartment has a 360-degree view, and the ceilings are 10-feet-6. There's also a conservatory with a custom staircase by Eric Schmitt, leading to 2,400 square feet of private outdoor space. As part of The Mark, residents have access to the gym, salon and 24-hour room service by The Mark Restaurant by Jean-Gorges.