Mansions are on like 5,000/10,000 square feet, McMansions are on like 15,000 Square feet while Giga-mansions are on 50,000 square feet and above. The land space is so big that if the owner wanted, they could build 10 mansions on them, schools, amusement park, gulf course, hospitals etc...but instead, it's just a home for one billionaire family. Some of these homes in Beverly Hills and Bel Air are on the market for as much as $180million. See some photos after the cut...
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