The Berlin Wall came down. I lived in West Berlin from May 1985 to January 1989. The Berlin Wall had existed since I was a toddler, and it seemed as permanent as, well, the Soviet Union. Sic transit gloria mundi.
Here is my piece of the Berlin Wall:
It came from the Lichterfelde district in the American Sector, in the south part of the city. That was the district where I lived, coincidentally enough. I got it from a local radio station in early 1990, when I called in to reminisce about my time in the divided city. It's a little chunk of concrete the size of a small piece of fudge.