The Berlin Wall still exerts incredible power over our imaginations, 25 years after Germans on both sides of the city began the process of demolishing it. Its existence had always invited wildly divergent reactions, making it not only a physical structure, but also a canvas on which political and cultural dreams could be projected. This is as true today, for a generation that has never lived in its shadow, as it was during the Cold War. Here are four stories that attempt to trace its legacy.