100-Meter long picture?

Below is a link to a 100-meter long photograph. Yes, 100-meter long. It's interesting to scroll horizontally and see the looks on the faces of the people having their photo taken, and not knowing it. But, check out one guy in the mid part of the photo, and see him "flipping the bird". He definitely knew his photo was being taken. If you have time to waste, check it out here.