Yes, this is Civic Center station on the LA subway....for big events in DTLA, I take light rail to Union Station, and from there to Civic Center, I take a transfer to the red line to Civic Center.
I have an idea what it is - but can't see the wires.
What is really puzzling is the "Why "; and maybe the "Where?"
It looks like a subway station, but knowing LA is isn't, and knowing you it is probably an offshoot of a art museum. But the background is still strange to me.
Cop: Thought to self "holy cow never seen that before, so where is the nearest doughnut shop".
It took me a bit to figure this out but after looking at it on the 4K monitor it became more apparent. Paul