Everything about the Cold War was creepy. We knew for sure that nuclear warheads were aimed straight for us and could be deployed at any time. Some of the remaining symbols of that era are missile silos, mostly abandoned these days, that are too large and expensive to dismantle. See a collection of these creepy facilities at Environmental Graffiti. Link
(Image credit: Wikipedia user Martin Trolle Mikkelsen)
I worked a temp job once with a nice young guy who'd guarded one of these places when he was in the Air Force (and it was an active site). He said the missiles at his place were covered in magic marker graffiti written by other military guards. Nearly all of it, he said, was anti-war poetry and drawings.
Abusive comment hidden.
(Show it anyway.)