This part of the Earth Science Centre at U of Toronto has fascinated me ever since I first spotted it a few years ago. There are so many details to see and discover the more you look at it. Enlarge the pic to see it better and you will find 2 shovels hanging from the wall - these have lights behind them. The whole mechanism that is set up to look as if it opens the loading door must reference some type of mining/geology equipment. (any ideas?). I have been unable to find out any info on this structure but will keep digging!