In what appears to be a smart move, Facebook has painted their QR code on the roof of one of their buildings. (If curious, it is one of their Menlo Campus buildings). It would appear that they are now betting on Google Earth serving up a satellite images with this in it, and so gain a bit of free PR paid for by Google.
Except if you actually check, you quickly discover that this Facebook QR code currently points to this empty holding page.
One can only wonder if they should change that page to read, “This roof has been intentionally left blank”.