Please note: This is not a legal wall - It's an open air graffiti gallery!!! Hafendampf is an annual graffiti jam in Essen, which was born 2013. It was named after the location where it takes place traditionally - Essen's little known city port. There are five pilllars on each side. 10 pillars in total, additionally a huge front - and shutoff wall. They all are painted mostly on each side.