The task of shagging a girl from as many different countries as possible, ideally all of them! 1 point for 1 country, doing them in their own country counts as 2 points, 3 points if they don't speak the same language. Paying for it doesn't count
I had an awesome summer backpacking, I managed to cross all of Europe off the Round the World Challenge.
North America is the easiest place on the Round the World Challenge, next on my list is South America