I am from 82 (Dutch) and I still remember vividly visiting the border/iron curtain in 89 (just before the wall came down). My mom would jokingly put her arm through the fence and say 'my arm is in communist East Germany' (technically DMZ I guess) and my parents would tell that they would shoot people trying to cross from the other side.
We often go to Germany, but this summer we went to Rügen. To get there we have to travel directly east, those trips just make you realize how close we were to the border and thus to an authoritarian regime.
Many of the buildings still had bullet holes and it felt like you could touch history.
When you know where to look, you can still find the scars everywhere. Our church tower still has bullet holes from WWII.