Yeah, I've seen The Cabinet of Dr. Caligari before, but that was a looooooong time ago. And let's be honest here, it's not like this particular, extremely striking setting actually MEANS anything in the greater flow of the episode. They could have had just about any kind of backdrop for these scenes, and very little would need to change. I appreciate the creative visual flourish, I'm just saying that it doesn't give me much to work with over there.