My hat's off to these creative thinkers. Check out http://www.googlelittrips.com!
While you're playing with Google Earth, be sure to look under featured content for the Rumsey collection. What a cool experience to see these historic maps ON THE GLOBE! By the way, you will need the latest version of Google Earth to utilize this feature. You can view more of David Rumsey's impressive collection at http://www.davidrumsey.com.