<p style="text-align:start;" size="0" _root="undefined" __ownerid="undefined" __hash="undefined" __altered="false"><span style="color:#000000">New York real estate tycoon Harry Macklowe and his ex-wife, Linda, are selling off 65 pieces from their legendary art collection following their bitter divorce. Auction house Sotheby’s estimates it could fetch over $600 million, which would make it the most expensive art collection ever sold.</span></p><h3 style="text-align:start;text-indent:2em;"></h3>