After the fall of the Berlin Wall, Roger Waters -formerly of Pink Floyd- performed THE WALL right where the Berlin Wall stood. It was musical performance that represent more than just a rock groups music. It was a change to a new time. In the 90's, it was for the better. Search youtube.com with Roger Waters Berlin as the subject. You'll find links to the complete perfomance.
If you were awake and aware during that time, it was a very moving experience. Here's my favorite part of the performance: