http://qz.com/333147/this-poetic-street-art-paying-homage-to-old-shanghai-is-being-erased-by-government-bureaucrats/

I had seen this article a while back and was fascinated by the beauty of the art in abandoned/condemned buildings in China. Most of the time graffiti is just that, a blight on public spaces, but there are rare times when there is real art growing from the wreckage of civilization, and these images are examples of such.