This former headquarters of the KGB (and before them the Gestapo, Polish occupiers and Tsarist judiciary) houses a museum dedicated to thousands of Lithuanians who were murdered, imprisoned or deported by the Soviet Union from WWII until the 1960s. Memorial plaques honouring those who perished tile the outside of the building. Inside, floors cover the harsh realities of Soviet occupation, including gripping personal accounts of Lithuanian deportees to Siberia.
The horror hits home on entering the basement, which contains inmate cells and an execution chamber where, between 1944 and the 1960s, more than 1000 prisoners were shot or stabbed in the skull.