Hey, @bashadow.
I hoped there would be some who hadn't seen spray foam used like this before. Not sure how unique it actually is.
The buildings sit off a road that runs parallel to the freeway, right at an onramp, so it's an odd location. Not sure what might want to go there other than something else that's light industrial. As it is, vandals and taggers have pretty much trashed what's left of the existing structures. I doubt they're worth that much, and the barrel building may have been put together with the idea of being torn down anyway. I know I've never seen anything like it before.
I have seen sculptures made out of a lot of things,but not spray foam. It seems that spray foam would be great for really large projects.