In September 2014, when it was revealed that the most expensive apartment in New York City would be a $130 million triplex penthouse in the 520 Park Avenue building, that was yet to be completed, no one had an idea of what that condo would look like. Now, that pictures of the penthouse were released, we can finally see how the world’s billionaires are going to live. This little mansion has over 12,000 feet and a 1,257 square foot terrace with a beautiful view of Central Park. According to Bloomberg it will go on sale next year. The Designer of this 54-story tower is Robert A.M. Stern Architects (RAMSA) and the project was developed by Zeckendorf Development CO.