中国韵母开头的城市（城市点位地图版）

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

Name the 20 cities ranked as the world's top financial centers according to the Global Financial Centres Index.

Can you name all of the countries to host the Summer or Winter Olympic Games, whilst avoiding the ones that haven't?

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