Nice quiz, although I would dispute the fact that any of these are "Cities" in the true sense of the word. Most are villages at best. Of the two actual designated cities, both in USA, the larger has only around 300 inhabitants. The largest of the 10 settlements only has around 3300 people living there. Maybe consider changing the title from Cities to Settlements ?
Yes, I totally agree. As a Finn I knew both municipalities from Finland (and nothing else), they really are not cities. If someone outside Finland knows either one of them, I take my hat off.