Fascinating site with alternate or fantastical maps: Strange Maps. Some examples:
- A map of baseball team allegiances (why do the Cubs have a dominion far exceeding the Sox?)
- A map of where the single population of one gender is greater than the other (there are a lot more single men in Seattle, and way more single girls all along the east coast).
- A map of the US where each state's name is replaced with the name of a foreign county which has roughly the same GDP (Arkansas [2.7] matches the output of Pakistan [270 million]).

Thanks to Worldmagblog.