Crack in the Wall
Even some failing plaster can become a canvas! Only a true artist would notice this surface and imagine a piece of work on top of it. Hopefully, that piece won't get blasted over!
"Stop War"
This message definitely has a deep meaning. A lot of people like to take regular stop signs and incorporate them into some type of street art. This person decided to go a little further and make the "shadow" of the stop sign reflect the rest of the message.