As I was coming and going, I noticed that there were small brass plaques on the pavement outside EG’s building. Each square was engraved with the name cohen, a date of birth, a date of deportation, and Auschwitz as the place of death. I looked them up on Google and found out that the plaques are memorials called Stolpersteine, or “stumbling stones,” and that they identify each building from which Jewish families were deported.