I have only a few states left to go in the US, and most of them are in the Bible Belt.
Red means I've driven through it. Amber means I've slept there at least once, but don't really know it very well. Blue means I've been there multiple times or spent extended time there. Green means I've lived there, or have been there a lot.
You can make your own map at: http://www.defocus.net/visitedstates/generate.html