I know exactly what you're on about but I think they're just called cartoon maps. A lot of the old ones were either put together by local chambers/tourist districts but were also used as marketing and advertising. Companies that paid could be shown on the map.
I'll look for cartoon map, thank you. I was searching "novelty map" but not coming up with much other than stuff from the golden days of Las Vegas.
From the link posted, I think they're pictorial maps.
I know a couple places that have one on the wall, I'm going to see if I can find a name.
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