I arrived in Europe with almost no knowledge of world history. While walking through Leuven, I noticed that a bunch of buildings contained identical stones that said “1914″, with some strange symbols on them. It looked like a bushel of wheat or something. A bumper crop year? Adrian had to sit down with me and explain that in that year, most of Leuven had been destroyed by the Germans in World War I. The buildings that were subsequently rebuilt all integrated this stone into their facades, in memory of the destruction.