I went to this link:
http://www.byways.org/map_request.html
And requested my free "brochure" on scenic roads, expecting to get some pamphlet or something. What showed up is a >450-page book produced by National Geographic called "Guide to Scenic Highways and Byways", in full color and with some pretty good stuff! Looking at the back it normally sells for $25, so this is good deal. Go get yours! (Just uncheck the box at the bottom telling them they can share your email address...)