Topping our list this year is, unsurprisingly, a transaction from Billionaires' Row, where a 75th floor duplex went for $91,541,053 on March 27. The unit was snapped up by a group led by hedge fund billionaire Bill Ackerman. That’s right: Nobody plans to actually live there; it's nearly 14,000 square feet without a permanent resident. Ackerman hopes to flip the place. Perhaps the next owner will actually reside in the space?

In March, New York Jets owner Woody Johnson sold this 14-room 11th-floor duplex to Ukrainian billionaire Leonard Blavatnik. Prior to the sale, Johnson had reportedly been seeking around $80 million. [Photo by NoondayNews/Flickr]

The 18th-floor unit at the Sherry Netherland had originally sought $95 million, but when it actually sold on March 6, the take was significantly less. Incredibly, it's now back on the market, this time for $86 million.

Get used to seeing One57 on this list—it occupies plenty of spots. This 77th floor unit, likely a duplex, sold for $47,782,187 on April 27. [Photo by Maxime Mialier/Flickr]

Height (and thus presumably better views) doesn’t always mean a home will go for more money. This 88th floor unit was sold on March 27 for $47,367,491. [Photo by Maxime Mialier/Flickr]

And this 86th floor unit sold for $47,366,990 on January 21. [Photo by Maxime Mialier/Flickr]

This penthouse duplex atop the 32-story building at the corner of East 73rd Street sold for $37,940,000 on August 7. It sports 12 bedrooms, 12.5 bathrooms, and pets are allowed.

The first of three townhouses on this list sold for a clean $37 million on January 15. It also features one of the prettiest residential staircases in the city. At 10,000 square feet, there are nine bedrooms and nine bathrooms. [Photo by Jessica Sheridan/Flickr]

Unit 8A sold on November 17. It has five-and-a-half bathrooms, four bedrooms, and three exposures. [Photo by Gareth Stevens/Flickr]

Easily the biggest celebrity on this list, rocker Jon Bon Jovi sold his unit in this Soho building (also known as 158 Mercer Street) for $34 million on May 1. There had been word (official and rumor) of him trying to offload the 7,400-square-foot five-bedroom pad since 2011, with the price going from $45 million to $42 million to $39.9 million to $37.5 million. Still, at $34 million, it’s more than the $24 million he paid for it.

The largest penthouse at the Trump International Hotel & Tower, unit PH51B, sold for $33 million on January 9. Its 5,024 square feet includes five bedrooms, 187 feet of 10-foot windows, and a formal dining room. [Photo by Michael McDonough/Flickr]

This is the penthouse of the former rental building gone condo. It occupies the 21st floor and the roof, with 6,000 square feet of interior space, a whopping 2,270 square feet of wraparound terrace, and a 3,800-square-foot roof deck. The sale’s exact monetary figure was $32,658,763 and the sale took place on May 21.

Back to One57: The five-bedroom unit 53B sold for $30,683,373 on April 14. [Photo by Joel Raskin/Flickr]

The final One57 unit on the list, 67A, sold for $30,042,375 on March 16. [Photo by Joel Raskin/Flickr]

Related Companies CEO Jeff Blau bought unit 14A for $21.4 million in 2008, put it on the market for $43 million in 2014, and dropped the asking price to $34.5 million in 2015. What he got on July 10 was a clean $30 million for the four-bedroom pad with 26 windows and a view of the Jacqueline Kennedy Onassis Reservoir.