The Mannahatta Project may be raising money by helping ambivalent urbanites give their overdeveloped island home back to nature, if only in cyberspace, but the Dutch government (using information from the Mannahatta Project) has reclaimed it for themselves, stamping their queen's face on it!
Behold their new 5 Euro commemorative coin with almost 3-D maps of the tip of Manhattan then and now (including Ground Zero as a construction site). The first one was struck April 6th, the day Hudson landed; a copy was given to President Obama on his recent trip to Europe. (Source.)