Richard Byrne recently posted about GeoSettr. This is a fun activity to get students familiarized with different parts of the world. It takes pictures from Google Streetview and you have to guess the location on the map of the world. It is good from a science perspective as well because you have to look at the weather, types of trees, and various landforms. These clues allow you to make an educated guess of the location on the map. You receive points based upon your answer. The closer to the actual location, the more points you receive.
Once you are finished, you can send the link to someone else through email. This allows you to compare results to see who was most accurate. For those of you that are Edmodo users, your students could post the link of their challenge directly on the message board on Edmodo. This would allow anyone in the class to meet the challenge.
via Free Technology for Teachers: GeoSettr - Create a Street View Geography Game.