3 of top 10 most expensive U.S. homes sold in Manhattan

Billionaires are keeping the real estate world very busy across the country. Three of those expensive deals happened right here in Manhattan.

Coming in at number 6 on the list is a single-family townhouse sitting approximately 20,000 square feet on East 75th Street. Reportedly sold to private equity investor J. Christopher Flowers fro $53 million.

Coming in at No. 7 on the list is developer Harry Macklowe, who bought a Plaza Hotel condo for $51.5 million. The 13,000 square foot condo was bought by developer Harry Macklowe in 2007 for a cool $51.5 million.

Lastly coming in at No. 8, Russian oil man Len Blavatnik bought an upper East Side townhouse on East 64th Street in 2007 for a cool $50 million. The person who sold the townhouse to him apparently paid only $4.375 million for it in 1994

What kind of home would you buy if you could spend $50 million or more?