217 W 57th Street #PH: $250 Million

Coming in at a whopping $250 mil, the Penthouse triplex atop the Central Park Tower not only has the distinction of being the most expensive home for sale in the United States, but it's also the highest residence in the entire world (with the highest outdoor terrace). The lower level starts on the 129th floor.

As you can imagine, the soaring 27-foot floor-to-ceiling windows provide some majorly epic views from Central Park, to downtown, to the Hudson River. With 17,545 square feet of interior space, including seven bedrooms and 11 baths, the record-breaking oasis is a certified castle in the sky.

View listing HERE!

[Photos via Sotheby's]

1 of 12