Graffiti art, by nature, is a territorial expression. Rival crews tag public walls, letting loose a spray-paint-infused primal scream: “I was here, I exist.” But graffiti also can be a ...

3. “NIKASITIMOS WAS HERE MOUNTING TIMIONA." Declarations of love and boasts of sexual conquest are not just the domain of modern bathroom-wall graffiti.

Painting inspired by graffiti is a style that was established in the '80s by the likes of Jean-Michel Basquiat and Keith Haring and has since become an old standard in contemporary art.