8) Updown Court – $138 Million

This Californian style mansion has 103 rooms. In 2005 it was the most expensive private home on the market anywhere in the world, having been listed for sale for in excess of $138 million.

7) Le Palais Royal – $139 Million

Le Palais Royal is a 60,500 square foot mansion located in Florida. It has 11 bedrooms and 17 bathrooms. The mansion includes a $2 million marble staircase and a gate decorated with 22K gold leaf.

6) The Pinnacle Montana – $155 Million

The ultra luxury mega mansion The Pinnacle Montana is one-of-a-kind. It includes 160 acres of land and 53,000 square foot home, home theater, three elevators, a bowling alley, a private-covered gondola from ski run to the home and many more luxuries.