Rockefeller's art trove becomes most valuable collection sold at auction

Several pieces from the late David Rockefeller's eye-popping art collection fetched a record-breaking $646 million Tuesday night - making it the most valuable collection sold at auction, according to reports. More than 1,000 works of art went on the block at Christie’s for the three-day auction, including Pablo Picasso's 1905 nude painting "Young Girl with...