This is an elevator to move mine car loads of sand to the surface for cleaning and eventually glass production. Below is a flooded equipment vault. In front and behind is a loop through the larger tunnels in the mine. The horizontal braces supported electric cables for the mine carts.
Here, the concentrated gold (and silver, and zinc, I would guess) would be loaded into trucks bound for the smelter.
A crack in a window in a wall. What’s this doing here?
Looking up from the ground floor at the various levels of the sugar mill.
The elevator works on gravity… this is where a conveyor belt was to move the grain toward the main elevator to be loaded into ships.
The topmost roof of the hospital is covered in antennae and includes a star that faced the rest of the complex, now demolished.
The control room for the whole of the plant. Sinterband here means one of the sintering lines. Temperatures, gasses, mixtures, speeds, and so on were centrally controlled here.