Even these mega-mansions in some of America's wealthiest neighborhoods are not immune to the housing crisis.
|How Brexit impacts the U.S. economy|
|'Independence Day' sequel loses the battle against silliness|
|British Millennials: You've stolen our future|
|Obama: Entrepreneurship has never been more important|
|Dow plunges over 600 points as U.K. 'earthquake' crushes global markets|