Still a work in progress; but this is what North America might have possibly looked like had the natives established their own Empires that existed to today.
The Iroquois and Cherokee would have a relationship similar to that which France and Germany has, or France and England. They'd be similar countries that are traditional rivals that now find themselves on the same side due to the way the modern world works. The Aztecs would be the strongest power on the continent,
I'm happy with the way some of the nations turned out, but not others. As such I consider this a work in progress; but this is a great 'first map' in that work showing a baseline of what is realistically possible given the position of the native tribes at the time of european contact.