Greek People's Liberation Army
During the Metaxas dictatorship and World War II the building housed the counterintelligence organization "Midas 614" and its staff officer Ioannis Tsigantes. During the Dekemvriana events, fighters of the Greek People's Liberation Army had attempted three times to blow up the building. The Blue Condominium can be seen in Greek films like "The Jealous Cat" (1956) and "Stamatis and Gregoris" (1962).