Everyone has probably seen this photo of an interesting operating theater with stadium seating at the old County Hospital, taken when it was newly opened...
(DWP Photo Collection at WaterAndPower.org)
Well, I got to wondering where in that giant 18 story building that room could possibly be. I figured the main clue is that huge 3-story, four section high window. Flipping through some pics, I noticed that there was only one such fenestration, at the 15-17 floor, west end of the building (highlighted yellow):
Had some time at lunch today, so I went up and looked. Sure enough, there it was:
At some point they clearly added a more sophisticated illumination system and removed whatever those wall mounted devices were, but it's largely the same. I would have taken a picture from the same point as the original but...
...for reasons unknown they walled off about a third of the stadium seating.
If you think those seats look steep, you're right. They're pretty scary to navigate. The steps leading from tier to tier are nearly ladder-steep, and the railings are uncomfortably low. If you fell backwards while climbing them, you'd likely fall all the way down and die of a cracked skull. Clearly this was designed and built in the old days, before safety was invented.