Kind of a fun little blog site with some good photos and videos. Dan Kanigan (not sure what he does for NASA) wrote up this blog page of how the shuttle gets from California back home to Florida on back of the 747. I really like the video he has of the walk around where he walks under the wing of the 747 and looks up at the shuttle. Look at it in full screen for a little better impression of the size of that huge pile of aviation!
Yeah, someday we'll have a view like this here in Seattle when NASA drops off a shuttle for our Muesum of Flight. *hint* (Dr. Bonnie Dunbar has to get us one, right? Huh? Yes? Please??)