We have quiet neighbours. Just opposite our front door is the wall of the Cimetière de Montmartre. However, to get IN to the cemetery involves a hike down the hill to the one and only entrance which is on a small road that comes off Boulevard de Clichy. I went there the other morning on the hunt for conkers. I found plenty of them but my attention ended up being drawn by the beautiful patina decay of the metal work on many of the tomb stones. Not to mention the stain glass.
Oh, and I also followed a cat!
Slide-show of more patina photos can be found here