I’m sure most, if not all of you use google maps and are familiar with the whole street view thing. Thanks to the joys of following the New York Public Library on Facebook, I learned that they tweaked the desktop website a bit. You can now travel back in time to 2007 (when street view started I assume), and other points in between. Here’s a link to the NYPL blog post about it, which peels back the layers of graffiti on a single building in NYC.