The boys and I discovered this the other day via Facebook, and have been enjoying it ever since. GeoGuessr is a simple but fascinating online geography game. Click to start, and you are plopped down at some random location in the world via Google Streetview; look around you for clues--landmarks, vegetation, road signs, even the angle of the sun--to figure out where in the world you are.
This game is a fascinating way to explore the world. You might be surprised at what you see and learn. Have fun!