Dispatches from a public librarian Last week, I received such a call from an elderly woman wanting me to settle a bet between her and her son. She wanted to know what countries in Europe the Great Wall of China went through and what was the year Reagan tore it down. When I explained that the Great Wall of China was still mostly intact and that she probably meant the Berlin Wall, she replied coolly, "No, hon, you see, the Berlin Wall is just the part of the wall that goes through Berlin." I put on my best geography-teacher hat to try and explain the Great Wall of China was, in fact, exclusively in Asia. She replied, "I'm pretty sure you're wrong. What would be so great about tearing down a wall in Germany? It's not even that big of a country."