Crating Building The building on the right was where parts not assembled onto vehicles would be set in crates for shipment. Similar Images ...based on the tags: black&white, bokeh, graffiti, skyways, windows... Don’t let Mitchell Engine House run out of steam… The largest extant structure when I visited. Fire doors separate the buildings. An insurance office. This floor of the workhouse had corkscrew conveyors–big augers–in the floor to move material around. Most of the walls that were metal were missing, leaving the concrete structure and open doors. The city has taken steps to prevent the curious and the desperate from going into the elevators, including piling rocks against the doors and windows. A white star marks the landing between the Keeper’s Quarters (Second Floor) and the radiobeacon and furnace rooms (First Floor). In the mine offices, hooks and a board with numbers was the system to keep track of who was in the mine and who was safe. The world’s biggest paper machine was installed here about a century before this photo was taken. The orange in the windows is the brick building across the street–the new part of the plant.