have you read Plato's Critias? According to that text, Atlantis was made up of some 10 regions... 1/3 of them turned on the rest though, sadly the text trails off just as it starts to recount that part 

 I might have read it, but I don't recall that. It's on my long list of things to (re)read. Are you saying that's something like the 10,000 Lichtensteins?