As Jakuje asked: You mean the headlines for continents, such as "17 countries found in Europe"? That sounds like a good idea.
This is something what could be done - in addition - as a positiv enhancement.
What I meant is: When you see a map of a country, than you can see on the top the buttons "Regions" and "Countries". And you get Buttons for all the Regions you have found so far, f. e. "Bayern" in Germany.
When you click on that Button you see the different countries of that Region, and in which of them you have found Caches already, but in the Haeder you see 3 countries, but not 3 countries of 24.