I discovered this weekend that Philadelphia has a wonderful array of murals in all kinds of unlikely locations, like the blank walls of old buildings overlooking car parks. It goes back to a 1984 anti-grafitti project, that lead to a lot of city-sponsored, community-driven art. So here are some. (Note: the first is an exception; it is indoors, in the Market East train station.)
Some links for “further reading”: the project’s website http://muralarts.org and this exhibit that we saw on Saturday http://www.pafa.org/beyondthepaint/
It is a gallery, so click on anyone to enter full-screen viewing mode.