Every day, thousands of people try to find countries on a 3D globe in Borderline. Their taps add up to a live map of what the world can and can't place. These are the countries people ask about, with real maps and real find-rates, hardest first.
Want the whole picture? All 166 countries ranked by how often people find them, or where the world's blind spots really are. If you'd rather fix the gaps than read about them: how to actually learn where every country is, how long it takes, and why day two is the hard one.