This museum is set up in the premises of the former anti-atomic shelter of the Interior Ministry. The Interior Ministry tunnel was built between 1981 and 1986 and can be considered one of the last "major works" performed by the communist regime. 
This bunker in the then-code called the "Pillar Object" consists of 24 rooms, one apartment reserved to the Interior Minister and a large hall dedicated to interconnection. Like many other bunkers of this size, this is also built to cope with a potential chemical and nuclear attack.