Take a look at those visa stamps on the pages of your passport booklet or the pages themselves (especially if printed in last 10-15 years). There are some amazing places animated in print and more amazing in person. What have you seen in person?
This list includes:
-cultural attire and fine arts symbols
-flora and fauna
-city or regional landmarks incorporated in seals/coats of arms
-locations passively referenced
Note: passport designs will change every couple years so some locations may be on dated designs