This is actually pretty cool. Someone over at Design Taxi sourced a poster of mythical creatures by region. What I'd really like to see someday, though, is a chart like this with historical connections. My daughter once challenged me by saying every culture has 'dragons' (implying some commonality and thus proving dragons were real). It would be cool to see where common mythological creatures spread and adapted with cultures, and where mythological creatures are undeniably 'local'.