山手线（运行系统）客运车站Stations of Yamanote Line System

Try to name the most-populous American cities whose names are 5 letters long or fewer.

There are 15 countries that start with the letter C. How many can you name?

Twenty three cities have hosted the Summer Olympics at least once. Can you click them all without making any mistakes?

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