Leonardo da Vinci was the mastermind of the Renaissance period, but whose life is still a fascinating mystery. A scientist, he was passionately devoted to art. As an inventor and student of nature, he was also a dreamer and idealist. He was a workaholic, who left much of his work unfinished, and inadequately expressed in the works that survived. Still, in view of the range of his activity and achievement - he was perhaps the greatest man who ever lived...