Florence is one of the main stops on any art lover's European itinerary. At the Uffizi Galleries, visitors can have their fill of works by Renaissance masters Leonardo da Vinci, Michelangelo and Raphael. Of course, none of these artists are women. In 2009, a new nonprofit foundation in Florence started to investigate why. And now they have identified 2,000 works by women artists that had been stashed in Italy's public museums and damp churches, and also supported restoration of 70 works from the 16th to 20th centuries.