These are photographs from a very unique and unusual event - the Cans Festival, was a full on street art exhibition that took place in Leake Street, a tunnel that runs just underneath Waterloo Station in London.
The "star" of the show was graffiti "superstar" Banksy along with about 30 other "urban artists" who covered the 200-meter tunnel in its entirety with their stencil works. Is it art or is it graffiti? You decide!