All, thanks so much for the comments. We wrote this up so long ago; it&#x27;s really interesting to get feedback now.<p>FWIW, The Infrastructure Observatory is working on more tours like this one, mostly in the NYC area. If you want to get involved (or have an idea for a tour that we should organize), get in touch at <a href="http:&#x2F;&#x2F;infraobservatory.com" rel="nofollow">http:&#x2F;&#x2F;infraobservatory.com</a> or @NYInfraObserve on Twitter.<p>-Spencer