5) Palazzo di Amore – $195 Million

In 2014, real estate tycoon Jeff Greene listed his 25-acre estate Beverly Hills for a staggering $195 million. At that time it was the most expensive listing in the US. This Mediterranean-style villa has a ballroom with a revolving dance floor, 13 bedrooms, 23 bathrooms, a bowling alley, a theater, tennis courts and other luxuries.