This was a harder one. Only four people got the correct answer. The answer is Iquitos, Peru which is the largest city in the world which cannot be accessed by road. If you go to Iquitos, you have to fly or travel by boat.
Getting this one correct:
- Ron Schott
The leaderboard will be reset starting with contest #21. The winner of the first decade #11-21 is Ben Bayer with 9/10.