7. PALAZZO DI AMORE – CALIFORNIA
Source: theclever.com, homesoftherich.net, thebillionaireshop.com
Estimated Worth: $ 195 million
This modern house is built in Meditteranean style, and its surrounding area reflects that style. The vineyards, olive tree gardens, waterfalls, floating glass walkways are all part of the deal, making Jeff Greene, the mogul owner of this estate seem very similar to the Roman oligarchs of ages past.