Flowers hang next to newly installed plaques on the Moscow apartment building where Ksenia Polunina grew up. The Last Address group has installed more than 900 plaques on apartment buildings across the former Soviet Union, memorializing residents who were unjustly arrested and murdered by Stalin’s security services.

Flowers hang next to newly installed plaques on the Moscow apartment building where Ksenia Polunina grew up. The Last Address group has installed more than 900 plaques on apartment buildings across the former Soviet Union, memorializing residents who were unjustly arrested and murdered by Stalin’s security services.