This [skill] stems from a bar bet Franken made some years ago in which he claimed to be able to name all fifty states. When he got to the end, the count was only 49, and there was no way to remember which state he had accidentally skipped. So he decided to learn how to draw a map of all 48 states so he could keep track.
A few friends from my study abroad trip to Rome used to razz a friend of ours who went to Waldorf Schools growing up about the fact that his alternate education should have endowed him with innate map-skills useful in any situation. Marky did, indeed, have quite a bit of cleverness... but I don't think his map skills were quite Franken-esque.