Brazil!

Sao Paulo, Brazil
Alexandre Orion

This graffiti was created in reverse - by cleaning grimy city surfaces. It’s sort of a lift-and-scrub technique in which the dark areas are old, crusted pollutants. Authorities didn’t know how to charge the Brazilian graffiti artist responsible, Alexandre Orion:

'The authorities were certainly miffed but could find nothing to charge him with. They had no other recourse but to clean the tunnel — but only the parts Alexandre had already cleaned. The artist merely continued his campaign on the other side of traffic. The utterly flummoxed city officials then decided to take drastic action. Not only did they clean the entire tunnel but also every other tunnel in Sao Paulo.'

Link Here

HAHA!