New York, New York
Alicia Keys bought this 16-room spread from Lenny Kravitz in 2010 for $14.5 million. Kravitz had renovated the penthouse and put it on the market several times over eight years before finally selling it. The penthouse apartment is in a pre-war building on Crosby Street, ideal for a celebrity looking to go under the radar.
Accessible via a keyed elevator, the glamorous home includes a dramatic gallery entrance, a gourmet kitchen, a media room, five bedrooms, four bathrooms and four powder rooms.