Zelle Asphaltkultur is an atist collective based in Düsseldorf. Particular attention they got 2011 with their controversial intervention „Die Möglichkeit eines Lagers“. They had painted a mural on the site of the abandoned freight depot of the german railway. As this terrain was the site of deportation of the Jews of Düsseldorf, this intervention was discussed as „concentration camp mural“ very emotionally. This crew normally works without tagging their pieces. That is why it is not as easy to assign their works uniquely.