ROC409853: The vertebral column, c.1510 (pen & ink with wash, over traces of black chalk on paper), Vinci, Leonardo da (1452-1519) / Royal Collection Trust / Bridgeman Images

XJF311683: Studies of military tank-like machines; including one at the top with horses pulling a contraption with revolving scythes, c.1485 (pen & ink and brown wash on paper), Vinci, Leonardo da (1452-1519) / British Museum, London, UK / Bridgeman Images

ROC399237: An outcrop of stratified rock, c.1510 (pen & ink and chalk on paper), Vinci, Leonardo da (1452-1519) / Royal Collection Trust / Bridgeman Images

ROC443677: Heads of horses, a lion and a man, c.1504 (pen & ink with wash and chalk on paper), Vinci, Leonardo da (1452-1519) / Royal Collection Trust / Bridgeman Images

ROC480619: A bird's-eye view of western Tuscany, c.1503-34 (pen & ink with wash and gouache over chalk on paper), Vinci, Leonardo da (1452-1519) / Royal Collection Trust / Bridgeman Images

XJL62083: Sketch of the Casting Pit for the Sforza Horse seen from above and the side, fol. 149r from the Codex Madrid I, c.1493 (pen & ink on paper), Vinci, Leonardo da (1452-1519) / Biblioteca Nacional, Madrid, Spain / Bridgeman Images

FAB32565: Studies of the Proportions of the Face and Eye, 1489-90 (pen & ink over metalpoint on paper), Vinci, Leonardo da (1452-1519) / Biblioteca Nazionale, Turin, Italy / Bridgeman Images

GIA4811152: Leonardo da Vinci Turbine (Leonardo da Vinci) - Museum of Science and Techniques of Leonardo da Vinci, in Milan, Vinci, Leonardo da (1452-1519) (after) / Museo Nazionale della Scienza e della Tecnologia 'Leonardo Da Vinci', Milan, Italy / Bridgeman Images

CH2633472: Colored Mona Lisa, 1963 (silkscreen inks & graphite on canvas), Warhol, Andy (1928-87) / Private Collection / Bridgeman Images

GIA4811213: Leonardo da Vinci Excavator (Leonardo da Vinci) - Museum of Science and Techniques of Leonardo da Vinci, in Milan, Vinci, Leonardo da (1452-1519) (after) / Museo Nazionale della Scienza e della Tecnologia 'Leonardo Da Vinci', Milan, Italy / Bridgeman Images

ROC399253: A portrait of Leonardo in profile, c.1515 (red chalk), Melzi or Melzo, Francesco (1493-1570) (attr. to) / Royal Collection Trust / Bridgeman Images

MRZ5035836: The Last Supper, 1495-97 (tempera and oil on plaster), Vinci, Leonardo da (1452-1519) / Santa Maria delle Grazie, Milan, Italy / Bridgeman Images

MEV5045480: Codex Atlanticus, sheet 149 recto, Vinci, Leonardo da (1452-1519) / Veneranda Biblioteca Ambrosiana, Milan, Italy / Bridgeman Images

ROC427440: Neptune, c.1504-05 (chalk on paper), Vinci, Leonardo da (1452-1519) / Royal Collection Trust / Bridgeman Images

ROC399218: Map of the Valdichiana, c.1503-04 (pen & ink, w/c, bodycolour and chalk on paper), Vinci, Leonardo da (1452-1519) / Royal Collection Trust / 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

XBP340118: A page from the Codex Leicester, 1508-12 (sepia ink on linen paper), Vinci, Leonardo da (1452-1519) / Private Collection / Bridgeman Images

CH15826: Detail of fol. 2r, from the Codex Leicester, showing the outer luminosity of the moon (lumen cinerum), 1508-1512 (pen & ink on paper), Vinci, Leonardo da (1452-1519) / Private Collection / Bridgeman Images

ROC430744: The anatomy of a male nude, and a battle scene, c.1504-06 (red chalk with pen & ink on paper), Vinci, Leonardo da (1452-1519) / Royal Collection Trust / Bridgeman Images

ROC399269: The muscles of the shoulder and arm, c.1510 (pen & ink with wash over black chalk on paper), Vinci, Leonardo da (1452-1519) / Royal Collection Trust / Bridgeman Images

ROC399273: The bones, muscles and tendons of the hand, c.1510 (pen & ink with wash over black chalk on paper), Vinci, Leonardo da (1452-1519) / Royal Collection Trust / Bridgeman Images

MEV5045229: Codex Atlanticus, sheet 30 verso, Vinci, Leonardo da (1452-1519) / Veneranda Biblioteca Ambrosiana, Milan, Italy / Bridgeman Images

ROC399277: The muscles of the shoulder and arm, and the bones of the foot, c.1510 (pen & ink with wash over black chalk on paper), Vinci, Leonardo da (1452-1519) / Royal Collection Trust / Bridgeman Images

XOT366466: Reconstruction of da Vinci's design for a bicycle (wood), Vinci, Leonardo da (1452-1519) (after) / Private Collection / Bridgeman Images

ROC399227: Sketches for the Trivulzio monument, c.1508-10 (pen & ink on paper), Vinci, Leonardo da (1452-1519) / Royal Collection Trust / Bridgeman Images

GIA4811164: Leonardo da Vinci assault machine (Leonardo da Vinci) - Museum of Science and Techniques of Leonardo da Vinci, in Milan, Vinci, Leonardo da (1452-1519) (after) / Museo Nazionale della Scienza e della Tecnologia 'Leonardo Da Vinci', Milan, Italy / Bridgeman Images

STC1275156: The Proportions of the human figure (after Vitruvius), c.1492 (facsimile), Vinci, Leonardo da (1452-1519) (after) / Private Collection / Bridgeman Images

ROC399247: Head of St. Anne, c.1510-15 (chalk on paper), Vinci, Leonardo da (1452-1519) / Royal Collection Trust / Bridgeman Images

FIT156935: Rider on Rearing Horse, c.1481-82 (silverpoint, pen & brown ink on prepared paper), Vinci, Leonardo da (1452-1519) / Fitzwilliam Museum, University of Cambridge, UK / Bridgeman Images

LLM666589: Leonardo da Vinci (engraving), English School, (19th century) / Private Collection / Bridgeman Images

JLJ4668126: The Virgin, the Child Jesus, Saint John the Baptist and an Angel or “The Virgin with the Rocks”” painting by Leonard de Vinci (Leonardo da Vinci) (1452-1519) 16th century Sun. 1,99x1,22 m, Vinci, Leonardo da (1452-1519) / Louvre, Paris, France / Bridgeman Images

XJF311632: Studies of Violas (Viola odorata and Viola canina), fol. 14r from Manuscript B, c.1487-90 (pen and ink on paper), Vinci, Leonardo da (1452-1519) / Bibliotheque de l'Institut de France, Paris, France / Bridgeman Images

ROC399268: The muscles and veins of the arm and torso, c.1510 (pen & ink with wash over black chalk on paper), Vinci, Leonardo da (1452-1519) / Royal Collection Trust / Bridgeman Images

FTB60399: Study of Horsemen in Combat and Foot Soldiers, 1503 (pen & ink on paper), Vinci, Leonardo da (1452-1519) / Gallerie dell'Accademia, Venice, Italy / Bridgeman Images

GIA5036017: The palm and the buoy, Codex Atlantic (drawing), Vinci, Leonardo da (1452-1519) / Bridgeman Images

LRI4635234: Geometry: “” A Polyhedron”” 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