Seterra is a large collection of free geography quizzes. The there are dozens of quizzes covering everything from country identification to identifying physical geographic features like mountains, rivers, and seas. There are seven categories of quizzes arranged by continent. Seterra's quizzes are available in sixteen languages.
Seterra's quizzes available as a free download for Windows computers. The games can also be played in an online version. If you download the quizzes you can keep track of your scores on your computer. The online version of the games do not allow you to keep track of your scores.
Applications for Education
I downloaded Seterra and tried a couple of the quizzes on my desktop. The quizzes are very straight-forward in terms of how to use them. Your cursor will become highlighted with a prompt to identify a state, city, or geographic feature. You could easily have a whole classroom using Seterra in minutes. The only flaw I found in Seterra is that the US states identification quiz did not include Hawaii and Alaska.