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CitySpire Penthouse, New York, N.Y.

6. CitySpire Penthouse, New York, N.Y. (TIE)

List Price: $100 million
Condo Size: 8,000 Sq. Ft.
Listed With: Klar Realty

This octagonal-shaped penthouse spans the top three floors of the City Spire building in Midtown Manhattan. Amenities include a media room, a 20-person dining room, a formal gallery, a conference room, a 1,000-bottle wine storage, an interior elevator exclusive to the three floors, and the city's highest terraces. The owner, real estate developer Steven Klar, is marketing it as a For Sale By Owner (FSBO) after a traditional listing represented by one of the city's top agents didn't yield a buyer willing to shell out nine figures.

America's Most Expensive Homes for Sale

Forbes Staff

To compile our list of the most expensive homes on the market in America right now, we sorted through listings on Realtor.com, Trulia.com, Sotheby’s International Realty, Corcoran Group, Douglas Elliman Christie’s International Real Estate (and its affiliates), Coldwell Banker Previews International, The Agency and others.