The New York City duplex penthouse formerly owned by designer Calvin Klein has hit the market for $35 million. The apartment, currently owned by ex-record exec Steve Gottlieb, overlooks iconic Central Park and has been largely unused for years.
The glass cube home has undergone several changes, most notably when Klein knocked out all of the interior walls and installed a hot tub on the roof -- to the chagrin of the co-op board. The four-bedroom, 4.5-bathroom, 5,000-square-foot pad also has an additional 2,000 square feet of terraces. According to The New York Times, the views "leave nothing to the imagination."
There's also a "double-height" tower room and a glass-enclosed garden room that opens up to an "expansive" corner terrace. The bottom floor has a formal dining room, a media room and an eat-in kitchen.
Raphael De Niro and Howard Margolis of Prudential Douglas Elliman Real Estate have the listing.
Click on the images below to see more homes for sale in New York City.
More on AOL Real Estate:
Find out how to calculate mortgage payments.
Find homes for sale in your area.
Find foreclosures in your area.
See celebrity real estate.
See more Houses of the Day on AOL .
Got a tip for House of the Day? Know of an exceptional or unusual property currently listed for sale? Please email email@example.com with your suggestions and be sure to include links to listing details and photos. (Due to the volume of response, we unfortunately are unable to reply to each submission.)