You find this wall at the tunnel under the tourism office. Do mind... it can be dark and slippery.
This wall shows some of the highlights and famous faces from Ghent: the castle, the fish market, movie stars (hey, we have a great movie festival!) ... The idea is that the black lights create reflections from the paint on the walls, but the lights often don't work at the moment.
This wall was made in 2012 when the very first street art tour was presented to the public.