I was prepared for the Louvre to be big but it is hard to believe just how big this place really is. We did the "must see sights" (Mona Lisa, Venus, crown jewels, etc) and whatever we could see on the way to them. By the time you factor in getting mixed up on where we were, I think we walked through 1/2 to 3/4 of it, pausing to look at things that interested us. You would have to spend days in here to really take it all in.
The "small" inner courtyard at the Louvre.