Back when I was an intern with SGI, we took a day off* to visit the Chippewa Falls Museum**, which has a good-size collection of Control Data and Cray Supercomputer relics along with other items relevant to my interests***.
I got to poke around inside of an original Cray-1. To me, the most interesting thing about it was just how insanely packed the internal wiring was; I'd been expecting the intricate plumbing, but the sheer volume of wires running from Point A to Point B was really impressive. I mentioned this to the guy giving the tour, who turned out to be a retired manufacturing supervisor -- he told me that the hardest part of his job was finding women with both enough skill and small enough hands to handle the internal wiring jobs. The thing had been assembled *by hand*, every connection in this crazy bulk of wired clipped or soldered into place one after another.
Anyhow, after that I sat on the couch. It was not comfy.
* My boss was *pissed* about this -- she went around telling anyone that would listen that "interns are here to work, not go sightseeing". This marks the one and only time in my career that anyone in HR has ever done anything worthwhile, calling her up and telling her this was part of the program and she didn't get a vote.
** Seymour Cray moved to Chippewa Falls, his hometown, when he was still with Control Data because he felt most middle managers wouldn't want to drive that far just to bother him. Visionary man, that Seymour Cray.
*** Stuff from Leinenkugals.