I see people are asking about historical buildings. I have a bit of a mystery that I'd like to solve if possible.
Below are a couple of pics of what appears to be a section of rail tracks. This was taken on the west side of the 3rd street tunnel. I thought this was the original location for Angels Flight before it was moved. However, all documentation on it states that it was on the east side of the 3rd street tunnel.
Does anyone know what this is? If not, could you point me in the right direction?