I think that Mythworld never existed in our world, BUT when I first played Myth, I always want to know where mythworld was in our world. And I began search mythcities in our world, AND I found Madrigal. Yes, yes Madrigal in our world!!! Madrigal is small city in Spain(Where I live:-)).
So, I thought that mythworld is Spain and Portugal.
Now I also think that mb Mythworld could exist in Spain and not in France. Why?
1- France in the left has Spain and in Mythmap there was ocean.
2- I didn't find any Mythcities in France.
Than I thought that mb, Mythpeople didn't explore and didn't find Spain, BUT in the level "Landing in White Falls" they passed through place *where Spain must be*, so Mythworld must be old Spain.
I know it's not very good idea, but it's one idea.
I'm waiting your opinions.