The Great Wall of China, one of the wonders of the ancient world—so we had learnt from elementary school. And in a few hours, I would be on it! I mulled on this for a moment. The movie—The Great Wall, starring a buff Brad Pitt and the very attractive Tian Jing passed through my mind. The various sections of the wall had been built over a long period of time, in fact many centuries, to keep marauding hordes from the north ravaging the empire, with mixed success. In some countries walls are being contemplated, even today, to prevent being overrun by so called “hordes”. It seems history keeps repeating itself. Why don’t we ever learn from it?