I was thinking, is there a way we could get Europe to look completely unrecognizable with a POD in the Roman Empire?
What I mean is that instead of any sort of familiar features such as "a Germany" or "a France" analogue roughly corresponding to OTL borders, we get something completely different. Instead of say, a France more or less existing in some form from the Channel to the Seine to the Mediterranean, we get the same type of state going from say from the Loire to the Rhine to the Rhone? And instead of a Germany from the Rhine to beyond the Oder we get some analogue in between the Elbe and the Vistula?
I know there's a lot of geologic factors and logic in different countries boundaries and a lot of them do make sense (i.e Italy and Spain's natural boundaries of the Alps/Pyrenee and the sea, but can we competely rearange the boundaries of all those would-be nations to something different?