Gum Wall

From the early 90s, audience members on their way in or out of the Unexpected Productions improv theatre would stick used chewing gum on the wall and decorate it with a coin. Over time people have become creative, spelling out their name and composing little artworks with the gum. The wall has been cleared three times, most recently in 2015 as chemicals in the gum were damaging the brickwork in the alley. At that time the GumWall was several inches thick and estimated to have more than a million pieces. This was just a temporary measure as the Gum Wall has been recognised as a tourist attraction since 1999 and has picked up a new coating already.