Ace of Base: Albums by Cover

There are 9 countries in the world that start with the letter I, most of them well-known. But how many do YOU know?

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

15 random U.S. States have been shaded on a map. Can you name them all?

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