Price: $122.2 million
Location: Windlesham, England

Your blood may not run blue, but with enough green you can still live near—and like—royalty. Updown Court is currently the most expensive residence in the world, costing about $50 million more than the priciest U.S. home. The brand-new property is totally over the top, with 103 rooms, five swimming pools and 24-carat-gold leafing on the study's mosaic floor. There's a squash court, bowling alley, tennis court, 50-seat screening room, heated marble driveway and helipad. All eight of your limousines will fit in the underground garage. Then there are the neighbors, who include the queen (at Windsor Castle) and Elton John. It is listed with Savills and Hamptons International.