BEN ASHKENAZY

$3.8

BILLION  SELF-MADE SCORE: * SOURCE: REAL ESTATE AGE: 50 RESIDENCE: NEW YORK CITY PHILANTHROPY SCORE: The Israeli native bought his first property at 17. His Ashkenazy Acquisition now owns shopping centers, luxury shops and office space from Miami to New York, including landmarks such as Boston’s Faneuil Hall and Washington, D.C.’s Union Station.