Okay, I've seen it up close and personal now and I really, really, REALLY don't get why the Mona Lisa is so famous. I saw many paintings today that just blew my mind, and that certainly wasn't one of them. This, however, was. In fact, I think I'm going to find a giant poster of it to put in my room.
Dante and Virgil in Hell by William Adolphe Bouguereau: