The three-story mega-home inside Central Park Tower, which spans more than 17,500 square feet, is the country's most expensive listing.
The most expensive sale of the year in Manhattan so far is a $74 million penthouse of the new Aman New York condo.
Some brokers say the $250 million asking price for Central Park Tower penthouse is unrealistic.
Central Park Tower was built by Extell Development, the developer behind several of Manhattan's new super-towers.
The Grand Salon at The Penthouse at Central Park Tower Source: Evan Joseph | Central Park TowerThe home has the highest terrace in the world, a glass-rimmed platform soaring 1,460 feet above Manhattan.