Seterra is a free map quiz game that teaches you about countries, states and capitals all over the world. This is the online version, which is written in HTML5. It runs under the latest version of most web browsers, e.g Safari, Firefox and Google Chrome, as well as Internet Explorer 9 or later. It will work under Windows, MacOS X och Linux, and also with mobile devices such as iPhone, iPad or Android. There is also an ad-free, downloadable version for Windows.