http://www.swiss.ai.mit.edu/~rauch/charlestown/maps/18th_Century.html 3d map down from the top of webpage.....It is great & havent seen this before! Saving it! <A HREF="http://www.swiss.ai.mit.edu/~rauch/charlestown/maps/18th_Century.html"> Historic maps of Charlestown - 18th Century</A>