As mentioned before the Mona Lisa by DaVinci, I've seen it in real life and it's not as big as you would think! It's about the size of an A4 piece of paper, and unfortunately it has to be protected by glass due to people trying to deface it, which I cannot understand. The glass does visually impair it somewhat but it's still a great piece. Although as with all art pieces, a picture in a book is no match for viewing the real life thing!