Cele mai mari 10 orașe din Serbia pe hartă

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

Can you name the cities that are served by the world's 50 busiest airports?

There are 16 countries with a population of at least 100 million. Click them all without clicking any incorrect countries.

Drag the pin onto the correct country. Careful, though! Three wrong moves and the game ends.