Соловецкий лагерь особого назначения
The Solovetsky Stone is a monument in Lubyanka Square in Moscow, across from Lubyanka Building. The monument consists of a large stone brought from the Solovetsky Islands, the location of Solovki prison camp, part of the Soviet Gulag system. The monument was erected in 1990 to honor victims of political repression in the Soviet Union.