A fifteenth-century Italian polymath of soaring imagination and profound intellect, Leonardo da Vinci left behind artistic works of staggering beauty as well as detailed anatomical sketches, studies of geology, gravity and water, and designs for machines of war and flying contraptions that today are marveled at for their ingenuity and foresight. Actor: Adriano Giannini. Narrator: Keith David. Authors: David McMahon and Sarah Burns. Directors: Ken Burns, Sarah Burns and David McMahon. Producers: Sarah Burns, David McMahon, Tim McAleer, Ken Burns.