Cadbury Silos - Dunedin on Flickr.
I was inside the purple silo on the Cadbury tour. They have this thing where they recycle chocolate that is not fit for consumption by using it as a kind of art installation. Basically they keep it liquid and then when you go in there, they dump a ton of it down the silo in front of you, so you see a chocolate waterfall.
Once it’s been used it’s natural life in the art installation, it gets made into pig food.