Top 20 Most Populated Cities in the World

Can you name all the countries that have ever been members of OPEC, the Organization of Petroleum Exporting Countries?

20 random countries have been removed from the map of the world! Can you identify them in 3 minutes?

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

Among these first names, click the ones where the average person in the U.S. with that name is at least 50 years old.