Last year some artists painted on old walls in Wedding (see this link for more info). I thought it would be a good idea to go and see the paintings live. Not like I'm in Wedding every day, so it was also a good chance to get to walk a little bit around the district.
Unfortunately, my favorite painting (first picture) was hidden inside a private building (or maybe I got the direction wrong).
I have created a public Google maps collection if you want to locate all them (there are six paintings).
U-Bahn: U9 Leopold Platz.