Today is Historical Map day at Gothamist-- starting with this great map of the Manhattan Coastline from PBS' Center of the World show. Check out how skinny Manhattan was back in the 1650s! Doesn't it look exactly like South America? We haven't been able to track down any New Amsterdam Google Map Mashups, so we've had to hit the archives: check out the maps at Fordham's library, this cute tour of New Netherland, and our all-time favorite map of New Amsterdam. Does anyone else have any good historic Manhattan maps links?