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The "House of Terror" is now a museum, but in two shameful and tragic periods of the 20th century Hungarian history it was the house of terror in reality. In 1944 it was operated by the Hungarian Nazis, and between 1945 and 1956 by the ill-famed Communist terror organization ÁVO and its successor, ÁVH (State Security Authority).
The museum commemmorates the victims of the dictatorship. The multimedia exhibition presents the two periods of Hungarian terror in chronological order in relation with the history of the house.