Graffiti
writing or drawing etched, scratched, scribbled, or sprayed (often, but not always illicitly) on a wall or other surface in a public place
Skateboarding is not a crime
stencil graffiti
Reverse graffiti
Spy Booth
My God, Help Me to Survive This Deadly Love
M. Chat
archeological graffiti
tagging
Berlin Wall graffiti art
digital graffiti
graffiti in New York
Peace dove
yarn bombing
Kilroy was here
Islamic graffiti
Flower Thrower
Gaza Strip
virtual graffiti