Berlin's “stumbling stones,” are each inscribed with the name of someone killed or persecuted by the Nazi regime, placed into pavement where the person last freely lived or worked. You can look at a map and downloadable list of 8,500+ installations. https://www.stolpersteine-berlin.de/en/finding-stolpersteine
@estherschindler My kid tells me she came across one that was also a Pokestop. At first that took me aback but then I realized how many more young kids will be exposed to this info. #NeverAgain