The Mona Lisa by Leonardo da Vinci may contain hidden code. Art historians are investigating a real life “Da Vinci Code” style mystery after discovering tiny numbers and letters painted into the eyes of the Mona Lisa. Members of Italy’s National Committee for Cultural Heritage have revealed that by magnifying high resolution images of the Mona Lisa’s eyes letters and numbers can be seen. Silvano Vinceti, president of the Committee said, “You have to remember the picture is almost 500 years old so it is not as sharp and clear as when first painted….From the preliminary investigations we have carried out we are confident they are not a mistake and were put there by the artist.” (Daily Mail UK)