Fifty-nine Italian Renaissance sculptures by such masters as Donatello, Luca della Robbia, Nicola and Giovanni Pisano, Andrea del Verrocchio, Francesco Laurana, and Mino da Fiesole, have been found in Russia’s Pushkin Museum. The works, which have been missing from Berlin’s collections since World War II, had been stored in a flak tower in Germany to protect them from bombs during the war. After two fires ravaged the structure, the works were believed to have been destroyed.