A History of the World with Google Earth: History for the Digital Age - Online and on the Page

Take a trip around the world—no plane required! All that's needed is this Internet-linked, time-traveling, globetrotting puzzle book created in association with Google™ Earth. Go back in time to visit the sites of some of the most important events in history. Then see what these locations look like today on Google™ Earth. Along the way, find hidden clues to a secret destination!