of the Carnation, 1478-1480. Kept in: Alte Pinakothek, Munich The Virgin Mary with a naked baby Jesus, originally attributed to Verrocchio but now understood to be completely the work of Leonardo. Madonna with a Flower, 1452-1519, Hermitage Museum, St Petersburg Yet another of one of Leonardo's favourite subjects, the Madonna with her child, what some consider to be one of the artist's first paintings completed with no assistance. Two of Leonardo's preliminary sketches for it are held in the British Museum. Mona Lisa, 1503 -- 1519, Muse du Louvre, Paris Still Leonardo's most famous work, and arguably the most recognisable painting in the world, the oil artwork depicts the smirking Lisa del Giocondo, the wife of a wealthy Florentine silk merchant. Around half a million people a month go to see it. Leda and the Swan, 1515-1520, Wilton House, Salisbury One of the most faithfully copied Leonardos, it tells the story of Greek god Zeus appearing to Leda, the daughter of a Greek king, in the form of a swan. The location of the original painting is still disputed, though its copy exists in Britain. Baptism of Christ, 1475, Uffizi, Florence Again accredited to Verrocchio and his pupils, Leonardo among them. The painting shows the Baptism of Jesus by John the Baptist, with Leonardo most likely having painted the angel on the left-hand side of the frame. The Annunciation, 1472-1475, Uffizi, Florence Showing an angel kneeling before the Virgin Mary, Leonardo is again believed to have split the work with