The hiking around Central City is beautiful and full of history. Just get a proper topo map!
In the brewhouse between the preheating tank and kettle room. The spiral staircase goes into a kettle annex where a few smaller stainless steel kettles hide. If you looked right from this frame you would see the bottom of one of the kettles like the bottom of a steel mixing bowl.
The left tunnel goes to the opposite side of the car elevator seen on the right. There was a time when Fords were shipped by barge on the Mississippi. This freight elevator brought them from the assembly floor to river level. A separate elevator was for moving men and silica up and down.
These houses were built for the use of the lighthouse keepers in 1913 (left) and 1916 (right). The second house was added when the entry added a fourth light and required a second rotation. Today, there are no unbroken windows in either building.