On one street I found a wall with wallpaper on it.
Wallpaper with a digital elephant!
Wallpaper with heavy graffity.
Just wallpaper. It was done by the "Behangjongeren"
(Funny name -> 'behang' is 'wallpaper' in Dutch - 'hangjongeren' is a word meaning as much as 'youth-hanging-around' or 'mallrats' - Together it is, you can guess, 'youth-puting-up-wallpaper').