Enrico Mignotto is an Italian photographer with an interesting project (who doesn't?). He just puts an old frame in the middle of the street in different European cities and takes pictures of what happens around. Simple as it seems the results are extremely interesting (at least for me :) )
You can visit the exhibition in Bologna, but if it falls a little bit too far for you it can still be viewed at his web site Life in Frame. I hope you enjoy.