Start by naming any country that France borders. Then name any country that borders any of those countries. Then keep going until there are no more countries left to name.
Really fun quiz, not too hard but not too easy either. Got 24 right with a lot of thinking and some guessing first try. Only mixed up the two greek philosophers.
As a German I approve of Hitler's dot being moved to Austria, where it belongs (to be fair he was born in a border town though). As a Bonner I disapprove of Beethoven being removed ;-)
Also changed Beethoven to Sigmund Freud because there were too many German dots too close to each other.