Tokyo as it appeared on a map in 1680. London as it appeared in 1843. At that time, London was the largest city in the world. Steven Johnsons new book, The Ghost Map, concerns a cholera outbreak in ...

Google Earth combines satellite imagery and aerial photography to create a rich picture of earth. You can use Google Earth online, on your smartphone or tablet, or on its desktop app — all for free.

Google Maps and Earth have revolutionized how we see the world. Google Maps navigates unknown cities in real time, and Google Earth operates on a larger scale. Google ...