The House of Terror (Terror Háza) is a museum and a monument at 60 Andrássy Avenue, at the former headquarters of the communist secret police (ÁVH). Its exhibitions commemorate the victims of the fascist and communist regimes of Hungary in the 20th century, including those detained, interrogated, tortured or killed in the building. The permanent exhibition portrays the country’s relationship with the Nazi Germany and the Soviet Union during the years of occupation and suppression by those powers. It also introduces Hungarian organizations, such as the fascist Arrow Cross Party and the ÁVH, a communist secret police similar to KGB. This shocking exhibition helps to understand these periods of Hungarian history better.