ROC5674275: A design for an equestrian monument, c.1485-88 (metalpoint on blue-grey prepared paper), Vinci, Leonardo da (1452-1519) / Royal Collection Trust / Bridgeman Images

ROC3955999: Storm clouds over a flooded landscape, c.1517-18 (pen and ink and brown wash over black chalk), Vinci, Leonardo da (1452-1519) / Royal Collection Trust / Bridgeman Images

ROC3823039: Verso: The proportions of the leg and foot, c.1490 (pen & ink on paper) (verso of 3823038), Vinci, Leonardo da (1452-1519) / Royal Collection Trust / Bridgeman Images

MEV5045234: Codex Atlanticus, sheet 33 recto, 1478-1518 (pen & ink), Vinci, Leonardo da (1452-1519) / Veneranda Biblioteca Ambrosiana, Milan, Italy / Bridgeman Images

ROC3900536: The head of Leda c.1505-06 (pen & ink over black chalk on paper), Vinci, Leonardo da (1452-1519) / Royal Collection Trust / Bridgeman Images

ROC399222: The head of a horse, c.1503-04 (pen & ink and wash on paper), Vinci, Leonardo da (1452-1519) / Royal Collection Trust / Bridgeman Images

XIR154639: Six Figures, Study for an Epiphany (pen and ink on paper), Vinci, Leonardo da (1452-1519) / Louvre, Paris, France / Bridgeman Images

XJF308795: Astronomical diagrams, fol. 2r from the Codex Leicester, 1508-1512 (pen & ink on paper) (b/w photo), Vinci, Leonardo da (1452-1519) / Private Collection / Bridgeman Images

FAF271496: Ms B fol.89r Take-off and landing gear for a flying machine, 1487-90 (pen & ink on paper), Vinci, Leonardo da (1452-1519) / Bibliotheque de l'Institut de France, Paris, France / Bridgeman Images

RTR5315954: Maiden's face (study for the face of the angel of the “Virgin of the Rocks”, c. 1483-1485 (metal tip and lumeggiature of whitewash on prepared paper), Vinci, Leonardo da (1452-1519) / Biblioteca Reale, Musei Reali, Turin, Piedmont, Italy / Bridgeman Images

ROC5455484: The vessels of liver, spleen and kidneys, c.1508 (verso of 5455483), Vinci, Leonardo da (1452-1519) / Royal Collection Trust / Bridgeman Images

ROC5894044: Verso: Studies of the fetus, related internal organs, and the arm, c.1511 (pen & ink on paper), Vinci, Leonardo da (1452-1519) / Royal Collection Trust / Bridgeman Images

ROC4820280: Studies of horses and horses' heads, c.1490 (metalpoint on buff prepared paper), Vinci, Leonardo da (1452-1519) / Royal Collection Trust / Bridgeman Images

GIM5038005: Fight between a Dragon and a Lion (brown ink with wash on paper), Vinci, Leonardo da (1452-1519) / Gabinetto dei Disegni e Stampe, Galleria Degli Uffizi, Florence, Tuscany, Italy / Bridgeman Images

LRI4572912: Study for the Adoration of the Magi (Pencil drawing, 15th-16th century), Vinci, Leonardo da (1452-1519) / Gabinetto dei Disegni e Stampe, Galleria Degli Uffizi, Florence, Tuscany, Italy / Bridgeman Images

ROC5906640: A star-of-Bethlehem and other plants, c.1506-12 (red chalk, pen & ink on paper), Vinci, Leonardo da (1452-1519) / Royal Collection Trust / Bridgeman Images

ROC405195: Vessels of the thorax, with comparison of the heart and a germinating seed, c.1508-09 (pen & ink over black chalk on paper), Vinci, Leonardo da (1452-1519) / Royal Collection Trust / Bridgeman Images

ROC5892728: Recto: The bones of the foot, c.1510-11 (black chalk, pen and ink, wash on paper), Vinci, Leonardo da (1452-1519) / Royal Collection Trust / Bridgeman Images

ROC5617347: A cavalcade, c.1503-4 (chalk on paper), Vinci, Leonardo da (1452-1519) / Royal Collection Trust / Bridgeman Images

XIR161934: Study of nude men (pen and ink on paper), Vinci, Leonardo da (1452-1519) / Ecole Nationale Superieure des Beaux-Arts, Paris, France / Bridgeman Images

CH376610: The Codex Hammer or Codex Leicester, pages 48-51, 1508-12 (sepia ink on linen paper), Vinci, Leonardo da (1452-1519) / Private Collection / Bridgeman Images

GIM4253598: Copy of the Battle of Anghiari (29 June 1440), Vinci, Leonardo da (1452-1519) / Bridgeman Images

FIA5399495: Study of A Warrior's Head for the Battle of Anghiari, 1504-1505 (sanguine), Vinci, Leonardo da (1452-1519) / Museum of Fine Arts (Szepmuveszeti) Budapest, Hungary / Bridgeman Images

ROC871640: A scheme for a canal to bypass the Arno, c.1503-04 (pen & ink with wash over chalk on paper), Vinci, Leonardo da (1452-1519) / Royal Collection Trust / Bridgeman Images

ROC427429: Horse in profile divided by lines, c.1480 (pen & ink and chalk on paper), Vinci, Leonardo da (1452-1519) / Royal Collection Trust / Bridgeman Images

ROC5617359: The pointing hand of the angel in The Virgin of the Rocks, c.1517-20 (black chalk, with white heightening, on dark grey prepared paper), Vinci, Leonardo da (1452-1519) / Royal Collection Trust / Bridgeman Images

ROC486893: A map of the Arno east of Florence, 1504 (pen & ink with wash on paper), Vinci, Leonardo da (1452-1519) / Royal Collection Trust / Bridgeman Images

XJF311216: Study of a dog and a cat, c.1480 (metalpoint on paper), Vinci, Leonardo da (1452-1519) / British Museum, London, UK / Bridgeman Images

RTR5315957: Studies of proportions of face and eye (with notes), c. 1489-90 (metallic tip, pen and brown ink on paper), Vinci, Leonardo da (1452-1519) / Biblioteca Reale, Musei Reali, Turin, Piedmont, Italy / Bridgeman Images

ROC3899944: Sketches of the bust of a woman, c.1490 (metalpoint on pale buff prepared paper), Vinci, Leonardo da (1452-1519) / Royal Collection Trust / Bridgeman Images

ROC5846285: Verso: The vessels of the neck and shoulder, c.1508 (pen and ink over black chalk on paper), Vinci, Leonardo da (1452-1519) / Royal Collection Trust / Bridgeman Images

ROC5907191: Cats, lions, and a dragon, c.1517-18 (black chalk, pen & ink and wash on paper), Vinci, Leonardo da (1452-1519) / Royal Collection Trust / Bridgeman Images

ROC399235: A deluge, c.1517-18 (chalk on paper), Vinci, Leonardo da (1452-1519) / Royal Collection Trust / Bridgeman Images

XIR154608: Study of figures for 'The Adoration of the Magi' (pen and ink on paper), Vinci, Leonardo da (1452-1519) / Louvre, Paris, France / Bridgeman Images

MEV5047609: De divina proportione, Figure XL, sheet 111 recto: Empty body with seventy-two bases, Septvaginta dvarvm basivm vacvvm, Vinci, Leonardo da (1452-1519) (attr.to) / Veneranda Biblioteca Ambrosiana, Milan, Italy / Bridgeman Images

STC740411: Icosaedron elevatum vacuum, illustration from 'Divina Proportione' by Luca Pacioli (c.1445-1517), originally pub. Venice, 1509 (litho), Vinci, Leonardo da (1452-1519) (attr.to) / Private Collection / Bridgeman Images