Kimmo Hela-aro and Henry Pulla: Artism, Crash ja Space, 1988. © Photo: Helsinki Art Museum Artism, Crash ja Space, 1988 Artist Kimmo Hela-aro, Henry Pulla , Helsinki Helsinki City Transport commissioned the graffiti on Kontula metro station from Kimmo Hela-aro and Henry Pulla. The graffitis are painted on panels mounted on the wall behind the tracks. Read more.. At map