"An observatory, library, media room and serving kitchen are among the many luxury spaces found on the first floor of the penthouse," the People magazine reports.

"Guests can take the spiral staircase or the private elevator up to the second floor, where the bedrooms and recreation room are situated. The primary bedroom is also on the second floor and includes a sitting room, two dressing rooms and an en-suite bathroom."

"Atop the third floor sits the private ballroom with direct access to the Central Park-facing terrace, which is also deemed the highest terrace in the world. A catering kitchen, coat room, private study and two powder rooms are also located on the top level."

According to Gary Barnett, founder and chairman of Extell Development Company, "Central Park Tower has set a new bar for resort-style living, architectural innovation and impeccable interior design and the Penthouse is the crowning achievement."

"Not only is it the largest apartment on Billionaires’ Row and the largest in Central Park Tower, but it’s the largest condo currently for sale in New York City," the Forbes magazine reports.

"If those aren’t enough superlatives for a discerning buyer, it also has the highest ballroom and highest terrace in the world. There’s 17,545 square feet of interior space and 1,433 square feet of exterior space, and all three floors are connected via a grand spiral staircase."

"The modern marvel is a blank canvas, ripe for those who are filled with creativity and design inspiration. There are several massive living and entertaining spaces, as well as a kitchen exclusively for professional catering and another family kitchen."