Christie's Unveil Paintings By Picasso, Michelangelo And Gainsborough Offered For Auction

LONDON, ENGLAND - JUNE 13: Ron Mueck's 'Big Baby' sculpture appears to look round at a visitor to the Masterpieces Exhibition at Christie's on June 13, 2011 in London, England. The sculpture features in the exhibition, open to the public from 13th - 15th June 2011, which showcases some of the £250 million worth of art for sale over the next four weeks. Artists including Michelangelo, Gainsborough, Goya, Stubbs, Monet, Picasso and Renoir are represented. (Photo by Peter Macdiarmid/Getty Images)