I saw this clip on Out.Com, and was immediately fascinated by it. I am not sure if I have just never paid attention, but in less than 60 seconds, this clip shows you how a billboard is born. I could not stop watching!
So there you have it, it seems like some Billboards are painted, while I thought in this day and age, everything was printed and pasted into shape. But the actual process shown in the clip is way more cool. I think the billboard was loosely-based on the top photograph, although I have no way of really knowing. But I hope you enjoyed it.