wikipedia: Pixação or pichação is a unique form of graffiti native to the Southeastern metropolises of São Paulo and Rio de Janeiro, in Brazil. It consists of tagging done in a distinctive, cryptic style, mainly on walls and vacant buildings. Many pixação artists compete to paint in high and inaccessible places, using such techniques as free climbing and abseiling to reach the locations. Pixação has inspired and formed many Brazilian street artists, such as Os Gêmeos and Nunca.
Amazing images of these Pixação artists. Hard to imagine exactly how much adrenaline they must have running through their veins each and every time they go out to spread their style and message.