The object of this quiz is to click on the circle containing the largest population within Europe. When you begin you'll be shown 2 circles with radii between 50 and 250 km on the map which do not intersect. Click on the one with the larger Europe population within it (based Europe population density info) then 'Submit' - if you are correct you'll move on. One incorrect round and the quiz is over. Every 5 rounds the number of circles on the map will increase by 1. Try to build the longest streak of correct circles. Circles displayed will always be non-intersecting.
PLEASE NOTE: ALL of Turkey is included in counting population (not just European portion), and the portion of Russia west of 61.5 degrees E (just east of Chelyabinsk). Nothing outside Europe (such as Africa or middle east other than Turkey) is included toward the population count within a circle.
Quiz Takers 
Awesome quiz! There are far too many small villages, most of them with strange names, in my country of birth.
Are you truly Czech, or Czechloslovakian?
I was born in Czechoslovakia and I am Czech. But I think that I have already reached my limit on this quiz. By 75% you are left with tiny villages you need to know tons of to make any further progress. 80% is almost impossible unless you start typing in names from a list.
I lived there for 3 years and 44.47% is as far as I got..
Yep, you can basically just start typing random Czech words and you’re bound to find a village with that name.
Very true. You cannot, however, get 100% in this way like cheater Servaes did. I hope he’s a robot, because copying 6000+ names from a list doesn’t sounds like a lot of fun for a human being.