Cube is a very neat idea from Google – a game to raise awareness of, and educate you about, Google Maps.
Cube runs in your browser which is HTML 5 competible version (ideally Google Chrome). You play it by completing levels that set you navigational challenges in various cities around the world. I just completed the first level, navigating to a bowling venue in New York city. When you complete a level, you get a link to learn more about a particular feature of Google Maps.
Click here to experience the Cube Game