Over the last few weeks, the booming of long-exploded bombs resounded as I walked home from work in London. I live in the Barbican, the cultural-residential complex just ten minutes on foot from the office; it was built on the site of a densely packed urban ward leveled by Luftwaffe attacks in World War II. An old census put the population of what was called Cripplegate at around 35,000 residents. After the war, so many were displaced (or killed) that only 48 remained in the area. There are many