Tell apart flags that look alike

Can you name the capitals cities of all 196 countries in the world?

Based on the clues, can you guess these cities which start with each letter of the alphabet?

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

Start by naming any country that France borders. Then name any country that borders any of those countries. Then keep going until there are no more countries left to name.