LAL3641229: Leonardo Da Vinci studying birds in order to discover how a man could fly (gouache on paper), McBride, Angus (1931-2007) / Private Collection / Bridgeman Images

TRK879413: The double catapult. Designed by Leonardo da Vinci. 15th century. The Science and Technology Museum Leonardo da Vinci. Milan. / Museo Nazionale della Scienza e della Tecnologia 'Leonardo Da Vinci', Milan, Italy / Bridgeman Images

TRK879414: The double catapult. Designed by Leonardo da Vinci. 15th century. The Science and Technology Museum Leonardo da Vinci. Milan. / Museo Nazionale della Scienza e della Tecnologia 'Leonardo Da Vinci', Milan, Italy / Bridgeman Images

GIA4811169: Mouvement perpetuel de Leonard de Vinci (Leonardo da Vinci) - Musee de la science et des techniques de Leonard de Vinci, a Milan., Vinci, Leonardo da (1452-1519) (after) / Museo Nazionale della Scienza e della Tecnologia 'Leonardo Da Vinci', Milan, Italy / Bridgeman Images

GIM5037941: Two man profiles, an old man and a young man. The young man represents Gian Giacomo Caprotti, known as Andrea Salai or Salaij (circa 1480-1524), Leonard's pupil and lover. Drawing a la sanguine by Leonardo da Vinci (Leonard de Vinci) (1452-1519) Florence, Galleria degli Uffizi (Offices), Vinci, Leonardo da (1452-1519) / Bridgeman Images

GIA4799546: Wooden model (model) of hydraulic saw operated by gears and water. Made after drawing by Leonardo da Vinci (Leonard de Vinci) (1452-1519) Museum of Science and Technology, Milan., Vinci, Leonardo da (1452-1519) (after) / Museo Nazionale della Scienza e della Tecnologia 'Leonardo Da Vinci', Milan, Italy / Bridgeman Images

TRK879417: Study of Leonardo da Vinci. Multiple cylinder mill. Model. / Museo Nazionale della Scienza e della Tecnologia 'Leonardo Da Vinci', Milan, Italy / Bridgeman Images

KW3960932: Leonardo di ser Piero da Vinci, from Living Biographies of Great Painters, Ross, Gordon (1872-1946) / Bridgeman Images

TRK831830: The Rearing Horse and Mounted Warrior. Bronze. 16th century. Attributed to Leonardo da Vinci (1452-1519)., Vinci, Leonardo da (1452-1519) (attr.to) / Museum of Fine Arts (Szepmuveszeti) Budapest, Hungary / Bridgeman Images

MEV5050874: Leonardo da Vinci's opinion about how to draw perspectives, Vinci, Leonardo da (1452-1519) / Veneranda Biblioteca Ambrosiana, Milan, Italy / Bridgeman Images

GIA4799557: Wooden model (model) of hydraulic saw operated by gears and water. Made after drawing by Leonardo da Vinci (Leonard de Vinci) (1452-1519) Museum of Science and Technology, Milan., Vinci, Leonardo da (1452-1519) (after) / Museo Nazionale della Scienza e della Tecnologia 'Leonardo Da Vinci', Milan, Italy / Bridgeman Images

GIA4760475: Sfondacarene, a tool used to break the hull of an enemy ship. Model from the drawing of Leonardo da Vinci (Leonardo da Vinci). Museum of Science and Technology, Milan., Vinci, Leonardo da (1452-1519) (after) / Museo Nazionale della Scienza e della Tecnologia 'Leonardo Da Vinci', Milan, Italy / Bridgeman Images

MEV5051253: Page from the Treatise on Painting, Vinci, Leonardo da (1452-1519) / Veneranda Biblioteca Ambrosiana, Milan, Italy / Bridgeman Images

MEV5051254: Page from the Treatise on Painting, Vinci, Leonardo da (1452-1519) / Veneranda Biblioteca Ambrosiana, Milan, Italy / Bridgeman Images

MEV5051272: Page from the Treatise on Painting, Vinci, Leonardo da (1452-1519) / Veneranda Biblioteca Ambrosiana, Milan, Italy / Bridgeman Images

MEV5051256: Page from the Treatise on Painting, Vinci, Leonardo da (1452-1519) / Veneranda Biblioteca Ambrosiana, Milan, Italy / Bridgeman Images

MEV5051278: Leonardo da Vinci's opinion about how to draw perspectives, Vinci, Leonardo da (1452-1519) / Veneranda Biblioteca Ambrosiana, Milan, Italy / Bridgeman Images

JLJ4685104: Ritratto di dama. Portrait of a lady from the court of Milan, mistakenly said “” the beautiful ironwork”””. Painting by Leonardo da Vinci (Leonardo da Vinci) (1452-1519) 15th century Sun. 0,63x0,45m. - Ritratto di dama. Portrait of a court lady of Milan, wrongly called “La Belle Ferronniere””. Painting by Leonardo da Vinci (Leonardo de Vinci) (1452-1519), 15th century. 0,63 x 0,45m. Louvre Museum, Paris, Vinci, Leonardo da (1452-1519) / Louvre, Paris, France / Bridgeman Images

LAL3641227: A lizard to which Leonardo Da Vinci stuck a beard and horns to surprise visitors in Rome (gouache on paper), McBride, Angus (1931-2007) / Private Collection / Bridgeman Images

GIA4799533: Wooden model (model) of the “” Battiloro””, a drumhammer used to beat precious metals by Leonardo da Vinci (Leonard de Vinci) (1452-1519) Musee des Sciences et des Techniques, Milan., Vinci, Leonardo da (1452-1519) (after) / Museo Nazionale della Scienza e della Tecnologia 'Leonardo Da Vinci', Milan, Italy / Bridgeman Images

MEV5051252: Page from the Treatise on Painting, Vinci, Leonardo da (1452-1519) / Veneranda Biblioteca Ambrosiana, Milan, Italy / Bridgeman Images

MEV5051276: Page from the Treatise on Painting, Vinci, Leonardo da (1452-1519) / Veneranda Biblioteca Ambrosiana, Milan, Italy / Bridgeman Images

TRK879440: Sketch drawing for Leonardo da Vinci painting for "Virgin of the Rocks". Study of rocks. Copy. / Museo Nazionale della Scienza e della Tecnologia 'Leonardo Da Vinci', Milan, Italy / Bridgeman Images

GIA5035842: Study on wings. Codex Atlantic. Atlantic Codex, Drawing by Leonard de Vinci (Leonardo da Vinci) around 1499., Vinci, Leonardo da (1452-1519) / Bridgeman Images

MEV5051258: Page from the Treatise on Painting, Vinci, Leonardo da (1452-1519) / Veneranda Biblioteca Ambrosiana, Milan, Italy / Bridgeman Images

MEV5050875: Leonardo da Vinci's opinion about how to draw perspectives, Vinci, Leonardo da (1452-1519) / Veneranda Biblioteca Ambrosiana, Milan, Italy / Bridgeman Images

MEV5050873: Leonardo da Vinci's opinion about how to draw perspectives, Vinci, Leonardo da (1452-1519) / Veneranda Biblioteca Ambrosiana, Milan, Italy / Bridgeman Images

LAL957453: Michelangelo did not like Leonardo da Vinci (colour litho), English School, (20th century) / Private Collection / Bridgeman Images

MEV5051255: Page from the Treatise on Painting, Vinci, Leonardo da (1452-1519) / Veneranda Biblioteca Ambrosiana, Milan, Italy / Bridgeman Images

MEV5051257: Page from the Treatise on Painting, Vinci, Leonardo da (1452-1519) / Veneranda Biblioteca Ambrosiana, Milan, Italy / Bridgeman Images

MEV5051274: Page from the Treatise on Painting, Vinci, Leonardo da (1452-1519) / Veneranda Biblioteca Ambrosiana, Milan, Italy / Bridgeman Images

MEV5051275: Page from the Treatise on Painting, Vinci, Leonardo da (1452-1519) / Veneranda Biblioteca Ambrosiana, Milan, Italy / Bridgeman Images

MEV5051277: Page from the Treatise on Painting, Vinci, Leonardo da (1452-1519) / Veneranda Biblioteca Ambrosiana, Milan, Italy / Bridgeman Images

LRI4635228: Geometry: “” An Icosahedron”” Page taken from the manuscript “” De divina proportione”” (On divine proportions) by mathematician Fra Luca Pacioli dit Luca di Borgo (1445-1517) illustrated by Leonardo da Vinci (1452-1519).1509., Vinci, Leonardo da (1452-1519) / Private Collection / Bridgeman Images

LRI4635241: Geometry: “” An Icosahedron”” Page taken from the manuscript “” De divina proportione”” (On divine proportions) by mathematician Fra Luca Pacioli dit Luca di Borgo (1445-1517) illustrated by Leonardo da Vinci (1452-1519).1509., Vinci, Leonardo da (1452-1519) / Private Collection / Bridgeman Images

JLJ4570493: Portrait of a woman known as Isabella d'Este (1474-1539), Marquise of Mantua Drawing with black stone and blood by Leonard de Vinci (Leonardo da Vinci) (1452-1519) Sun. 0,63x0,46 m Paris, Musee du Louvre - Portrait of Isabella d'Este (1474-1539) - Work by Leonardo da Vinci (1452-1519), Charcoal and pastel (63x46 cm), 1500 - Musee du Louvre, Paris, France, Vinci, Leonardo da (1452-1519) / Louvre, Paris, France / Bridgeman Images