駅名に「山口」が含まれる駅

Try to name the 10 most populous urban areas in each of these historical years.

When you guess a country, all the countries it borders will also be completed. Can you fill in the world map in just 90 seconds?

Which countries have received a Level 4 "Do Not Travel" advisory from the U.S. State Department since the beginning of 2023?

Drag the flag onto the correct country. Careful, though! One wrong move and the game ends.