THE NEW BILLIONAIRES' ROW: See The Incredible Transformation Of New York's 57th Street

The market for high-end penthouses and ultra-luxury apartments in New York City is booming, and developers are once again building expensive new units after a post-recession slump. Nowhere is the rise of development more striking than on 57th Street, where six new luxury high rises are under construction, casting long shadows over Central Park and earning the street the nickname "Billionaires' Row." One57 already stands at 1,005 feet, making it New York's new tallest residential tower. Soon, th...