专名用字和所属地级行政区用字有重复的县级行政区

Can you name the 26 nations that have at least one urban area with 10,000,000 or more inhabitants? The '#' column is the number of megacities.

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

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.