I went to SF once for a few days and this is one of the things my friend showed me in my limited time there. I remember it from time to time. It's pretty cool.

Im trying to reflect on why it was so memorable. I thought it was interesting at the time but it wasnt mind-blowing or something. I think it is just just such a unique oddity and a relic of the past. There was so much effort and space devoted to this. You'd never do something like that today.