At least I got the number of passes right. See it here, via Mind Hacks.
P.O. Box 98199
Washington, DC 20090-8199
800-647-5463
Lat/Lon: 38.90531943278526, -77.0376992225647
At least I got the number of passes right. See it here, via Mind Hacks.
I’d seen this before at Vis 2006 in Baltimore. Dan Simons (http://www.viscog.com/) has some other interesting examples of this sort of thing, some quite comical.