The Principality of Monaco is a historically and geographically fascinating country. The entire area is under a single square mile (0.8, to be precise), yet it has its own semi-sovereign government and, technically speaking, an army.I say semi-sovereign because, by treaty, France has authority over Monagasque foreign affairs and economically dominates it. France maintains an embassy there. It's only 50 meters from the border of France.-via Iain Cameron...