The Faboulus Torch and Ovals of Detroit

[Whitehouse]

O/T really quick, sorry folks. Can anyone tell me what these are? Look like some kind of lamps.

http://maps.google.com/maps?f=q&sour...,0.097332&z=13

Looks like air pipes. As you can see there are caps in the pavement. This was the filling spot for the filling station itself. There are underground storage tanks there. I guess they didn't remove the whole station. Over here in the Netherlands these underground tanks in private hands have been disabled. In days gone by homes that were far away from the grid used to have their own heating oil supply and storage.
The tanks are sometimes taken out of the ground but sometimes they are also emptied and filled with sand. In this case maybe there was a financial motive not to remove those tanks. It could mean that there's an environmental hazard here.

Are there more brands in Detroit that are gone now? I can't find a Chevron station.