How well do you know the capitals of the world and their location? Name this country's capital is simple: you're shown a country and have to guess the capital.
It features almost all the countries in the world with a simple and beautifully designed interface. The correct answer is highlighted in green. If you make a mistake your answer will be highlighted in red and the correct answer in green, giving you a chance to learn.
The current country is shown on the top red bar on the left side, while the score is visible on the right.
All of this completely free.