Holes were cut into the floor to extract equipment from the basements. it was interesting to see the I-beams extending through all the levels of Studebaker.
Dust explosions were a real risk for grain mills. These funnels helped to filter the air in the mill.
This picture gives you the idea of how the boat-loading control rooms are set up; they lean over the dock and Lake Superior to be able to see down into the holds of the boats… important, considering how quickly it loaded the boats! An uneven load could put stress on the hull of a laker, increasing the risk it will break and sink.
A tower above Minneapolis that few people see.
These ceramic bricks were likely from the fireproof tunnel that connected the elevators.
The skylights with geared-to-open windows were massive and quite functional.
The American Victory next to M, seen late at night.
This mean-looking thing had a purpose, probably, but that function has been lost to decades of expansion.
An interesting crane in the back of the machine shop. It seems very light duty, so I am not certain what it was used for.