The old tartley.com used to have one of these, so here’s a quickie replacement. It tends to overstate the case somewhat, a single foray across a border floods entire countries. I’d imagine good old Google’s freebie geospatial tools could be put to use to create a better one, but for the time being, here’s an amusing approximation. I’d be amused to see Skankmeister’s version.
Create your own visited countries and states maps. Or else go check out Uncle Nixta’s version, from whence I got the inspiration.