Countries of Africa that have a city with over 1 million people

Name all 50 states in the USA. Easy, right?

Can you guess the countries that use the Euro currency without clicking any of the ones that don't?

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

Click the flags of countries that lie entirely on islands. But don't click any mainland countries or your experience will end abruptly.