A man urban exploring with his girlfriend in Ronse, Belgium entered an abandon hospital that was filled with Batman graffiti all seemingly done by the same artist.
The only indication as to who could have created these inspired Batman murals are the tags left by the artist indicating that his name is Pete or Peteone. Pete seems to be an especially big fan of the show Batman the Animated Series as most of the character designs are modelled after the look of 90's TV show. Pete doesn't limit his designs to animated shows however, as he takes visual cues from the Nolan movies as well as notable Batman comic stories such as Scott Snyder's Black Mirror arc.
Pete's Batman graffiti has got the internet buzzing about who the creator could be, creating a mystery only the Dark Knight himself could solve.