How to know it's a region or city, etc.

Would it be possible in the questions to give clues as to whether places are regions, cities, etc.? My French and British geography knowledge isn't that great. I could certainly Google whether places are cities or regions, but as the point of these kwizzes is to determine whether I know the proper preposition to use (and not to test my knowledge of geography), clues would be very helpful! This would be useful for all questions associated with prepositions before named places, not just this lesson. On the plus side, if there were clues as to the type a place is (region, city, etc.), I would gradually learn geography by proxy! Thanks!