There’s a really expensive and not very good museum in DC dedicated to “journalists.” It’s called the newseum and is a huge pat on the back self-admiration society to all those heroic journalists.
But, that aside, by far the best display they have is a 40’long section of the Berlin Wall.
Looking at it, one can easily distinguish the difference between a totalitarian and a democratic society. On the West side, the wall is 100% covered with layers of graffiti. The East side is pristine concrete.
I told my kids that’s all you need to know about communism. Approach the wall with a Sharpie and die.
Fixed it.
Actually, you were probably dead well before you made it close to the wall - which was the final piece in the elaborate border fortification.