There's a hidden drawing underneath the "Mona Lisa" — and it shows that this masterpiece almost looked very different.

Explore Leonardo da Vinci's most famous works like the Mona Lisa ... in the history of Western art. Mary of course was the most common subject in Medieval and Renaissance art.

isn't just great for the Mona Lisa. It could also allow the dozens of other artworks in the Salle des Etats — including masterworks of the Venetian Renaissance by the likes of Titian ...