Songs from Bowie's "Heroes"

How many countries do you know? In this quiz, you've got 15:00 to name as many as you can. Go!

Can you name the countries of the world where at least 50% of residents are Islamic?

Guess every major city in the world by guessing any city within 1,000 kilometers. With a map!

Click on every square of the world map which contains an urban agglomeration with a population of at least 10 million.