Very very cool, you have to download this and you can even go back in time. 
earth.google.com/intl/en/index.html
Very nice, but what unholy abomination of a pinyin system are Google using?.. Weird mash up of oddball “Situn” for 西屯 mixed with correct Hanyu “Caotun” 草屯… What manner of frankensteinian foolery is “Sioushui” ?.. Who do you write to to get Google to get with the Hanyu program I wonder…