With Larry Page leading what one Miami broker called a "gold rush," these neighborhoods may soon be home to some of the world's richest.
Called the Billionaire Bunker, this private island in Biscayne Bay has long been home to the ultrarich and is known for its intense security, 25,000-square-foot mansions, and exclusive golf club.
Carl Icahn and Tom Brady have homes there, as do Jared... [2746 chars]