XIR3179: Mona Lisa, c.1503-6 (oil on panel), Vinci, Leonardo da (1452-1519) / Louvre, Paris, France / Bridgeman Images

XIR472: School of Athens, 1510-11 (fresco), Raphael (Raffaello Sanzio of Urbino) (1483-1520) / Vatican Museums and Galleries, Vatican City / Bridgeman Images

BAL4146: The Proportions of the human figure (after Vitruvius), c.1492 (pen & ink on paper), Vinci, Leonardo da (1452-1519) / Gallerie dell'Accademia, Venice, Italy / Bridgeman Images

BAL161739: The Last Supper, 1495-97 (fresco) (post restoration), Vinci, Leonardo da (1452-1519) / Santa Maria delle Grazie, Milan, Italy / Bridgeman Images

XIR156516: Head of a Young Woman with Tousled Hair or Leda (gouache on wood), Vinci, Leonardo da (1452-1519) / Galleria Nazionale, Parma, Emilia-Romagna, Italy / Bridgeman Images

BAL227198: The Last Supper, 1495-97 (fresco) (post restoration), Vinci, Leonardo da (1452-1519) / Santa Maria delle Grazie, Milan, Italy / Bridgeman Images

XCZ229152: The Lady with the ermine (Cecilia Gallerani), c.1490 (oil and tempera on panel), Vinci, Leonardo da (1452-1519) / Czartoryski Museum, Cracow, Poland / Bridgeman Images

XIR505: Virgin and Child with St. Anne, c.1510 (oil on panel), Vinci, Leonardo da (1452-1519) / Louvre, Paris, France / Bridgeman Images

XIR2015: St. John the Baptist, 1513-16 (oil on canvas), Vinci, Leonardo da (1452-1519) / Louvre, Paris, France / Bridgeman Images

XIR34379: Portrait of a Lady from the Court of Milan, c.1490-95 (oil on panel), Vinci, Leonardo da (1452-1519) / Louvre, Paris, France / Bridgeman Images

XIR291665: Mona Lisa, c.1503-6 (oil on panel) (detail of 3179), Vinci, Leonardo da (1452-1519) / Louvre, Paris, France / Bridgeman Images

BEN140570: Annunciation, 1472-75 (oil on panel) (post restoration), Vinci, Leonardo da (1452-1519) / Galleria degli Uffizi, Florence, Tuscany, Italy / Bridgeman Images

XIR161992: Sketch of a roaring lion (red chalk on paper), Vinci, Leonardo da (1452-1519) / Musee Bonnat, Bayonne, France / Bridgeman Images

BAL28916: The Virgin of the Rocks (with the Infant St. John adoring the Infant Christ accompanied by an Angel), c.1508 (oil on panel), Vinci, Leonardo da (1452-1519) / National Gallery, London, UK / Bridgeman Images

XIR2038: Madonna of the Rocks, c.1478 (oil on panel transferred to canvas), Vinci, Leonardo da (1452-1519) / Louvre, Paris, France / Bridgeman Images

AII80165: 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

XCF29426: The Virgin and Child with Saint Anne, and the Infant Saint John the Baptist, c.1499-1500 (charcoal heightened with white chalk on paper, mounted on canvas), Vinci, Leonardo da (1452-1519) / National Gallery, London, UK / Bridgeman Images

JLJ4647230: Flying machines, one of the first drawings of a helicopter-like flying machine, c. 1487 (pen & ink on paper), Vinci, Leonardo da (1452-1519) / Bibliotheque de l'Institut de France, Paris, France / Bridgeman Images

BAL72634: Detail of the Angel, from The Virgin of the Rocksc.1508 (oil on panel), Vinci, Leonardo da (1452-1519) / National Gallery, London, UK / Bridgeman Images

XIR157795: Study of Arms (pen & ink on paper), Vinci, Leonardo da (1452-1519) (attr.to) / Louvre, Paris, France / Bridgeman Images

FTB165448: Study of the Flowers of Grass-like Plants (Briza Maxima) c.1481-83 (pen and ink on paper), Vinci, Leonardo da (1452-1519) / Gallerie dell'Accademia, Venice, Italy / Bridgeman Images

CH15834: Studies of the Illumination of the Moon, fol. 1r from Codex Leicester, c.1506-08 (pen & ink on paper), Vinci, Leonardo da (1452-1519) / Private Collection / Bridgeman Images

BAL33484: The Adoration of the Magi, 1481-2 (oil on panel), Vinci, Leonardo da (1452-1519) / Galleria degli Uffizi, Florence, Tuscany, Italy / Bridgeman Images

XAL152900: Perspective Study for the Background of The Adoration of the Magi (pen and ink on paper), Vinci, Leonardo da (1452-1519) / Galleria degli Uffizi, Florence, Tuscany, Italy / Bridgeman Images

CH3658091: Salvator Mundi, c.1500-15 (oil on panel), Vinci, Leonardo da (1452-1519) / Private Collection / Bridgeman Images

BAL99053: Detail of the Heads of the Virgin and St. Anne, from The Virgin and Child with SS. Anne and John the Baptist, c.1499 (charcoal and white chalk on paper, mounted on canvas), Vinci, Leonardo da (1452-1519) / National Gallery, London, UK / Bridgeman Images

FAF271497: MS B 2173 fol. 83v Studies of an air screw, 1488-90 (pen and ink on paper) (see also 162317), Vinci, Leonardo da (1452-1519) / Bibliotheque de l'Institut de France, Paris, France / Bridgeman Images

XIR71570: Detail of the Mona Lisa, c.1503-6 (oil on panel), Vinci, Leonardo da (1452-1519) / Louvre, Paris, France / Bridgeman Images

FAF152185: Head of a Young Girl, 15th century (charcoal, red chalk, white lead on paper), Vinci, Leonardo da (1452-1519) / Galleria degli Uffizi, Florence, Tuscany, Italy / Bridgeman Images

MEL403: Madonna with a Flower, or Madonna Benois, c.1478 (oil on canvas), Vinci, Leonardo da (1452-1519) / State Hermitage Museum, St. Petersburg, Russia / Bridgeman Images

XIR182931: Madonna of the Rocks (oil on panel), Vinci, Leonardo da (1452-1519) (after) / Musee des Beaux-Arts, Caen, France / Bridgeman Images

TOP655: The Last Supper, 1495-97 (fresco) (pre restoration), Vinci, Leonardo da (1452-1519) / Santa Maria delle Grazie, Milan, Italy / Bridgeman Images

XBP344386: L.H.O.O.Q., 1919 (colour litho), Duchamp, Marcel (1887-1968) / Private Collection / Bridgeman Images

FAB32564: Anatomical drawing of hearts and blood vessels, fol. 3v from Quaderni di Anatomia vol. 2, 1499 (pen & ink on paper), Vinci, Leonardo da (1452-1519) / Private Collection / Bridgeman Images

ROC399248: A study of a woman's hands, c.1490 (metalpoint, heightening and charcoal on paper), Vinci, Leonardo da (1452-1519) / Royal Collection Trust / Bridgeman Images

XIR430967: Madonna of the Rocks, c.1478 (oil on panel transferred to canvas) (also see 2038), Vinci, Leonardo da (1452-1519) / Louvre, Paris, France / Bridgeman Images