- Featuring graffiti and street art from around the world, this large-format sixteen-month calendar celebrates these exciting, ever-evolving art forms and the most prominent artists at work today.Graffiti is as old as cities – from the political slogans scribbled on public buildings in Pompeii to anonymous spray-can art that began to appear on walls in the streets of New York and Philadelphia in the 1970s, graffiti art has stood the test of time.