True American

I've always like The Atlas of True Names, which produces etymological maps, each place marked with the original meaning of the name. I have the British Isles blu-tacked to the wall above my lavatory, so I can relive history as I relieve myself.

Anyway, they've just released their map of the United States. Here is the link. And here is a link to a BBC article on it, although I'm not sure about their version of Yucatan.