Go through the courtyard at ul. Warszawska 37 and see the work by Wrocław local artist Łukasz Berger entitled 'SZUM' (noise), made out of nails sticking out of the wall! This was created in 2016 as part of the Katowice Street Art Festival. A similar piece created by Łukasz can be found in Łódź, using the same method, but entitled 'CISZA' (silence).