Miguel Farah sends me this thought experiment map, wherein he plays "what if" with European history.
What would have happened if Simon de Montfort had failed and the Crown of Aragon had continued its northern expansion? What would have happened if the Castilian and Portuguese counties hadn't survived? What if the Sami people had had their own country? Or if the Austrians had avoided being robbed Tyrol by the Italians? Or if Bavaria had refused to be a part of the German Empire in the XIX century? Or if ...? When reading history, there are many occasions where one asks himself questions like this and speculates about the changes those would bring to a political map.
Significant divergences include an East/West schism in the Roman Catholic Church and the Austro-Hungarian Empire becomes progressive and gives its many ethnic groups greater autonomy (thus avoiding WWI). More...
I always enjoy alternate history, and maps always make these stories more interesting.
Disunited States of America
The People's Republic of America
Alternate Nations of North America