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Location: New York, N.Y.
The Skinny: The 5,000-square-foot penthouse where Calvin Klein installed a hot tub on the roof and tore down all the interior walls when he owned it in the '80s and '90s has hit the market for $35M. Now the glassy perch belongs to former records executive Steve Gottlieb, who bought the 12-room unit from the fashion designer in 1999. Since forking over $8.6M, Gottlieb has given up on his grand plans to combine the empty space with his 18th-floor residence below. "Every day is a miracle from up here," he recently told the New York Times of the apartment, which has also belonged to entertainment bigwig David Geffen and starred as Superman's home in the 1978 Christopher Reeve movie. Inside, there's a 37-foot gallery, a 27-foot-long living room, a 30-foot-long dining room, some mighty bonkers terraces, and incredible-looking views over Central Park. Head to Curbed NY for the floorplan.