The penthouse belonging to technology entrepreneur Gideon Gartner sold for $20.7 million—almost 40 percent less than the original asking price, according to The Real Deal.
The Upper West Side pad, located in the Millenium Tower, first hit the market in September 2010 asking $34.5 million.
The buyer is listed as NTS Millennium, an LLC that's registed to Ayco Company, a national financial counseling provider.
Three separate units combine to create the 5,000-square-foot penthouse. Gartner and his wife purchased the first two units in 2005 for $7.9 million and added the third a year later for $1.3 million.
The 5,000-square-foot penthouse has 360-degree views of Manhattan.

The floor in the dining room is dizzying.

The kitchen has modern state of the art appliances.

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