From a historical point of view, the purpose of underground (atomic) shelters has always stayed the same. What has changed in time, due to technological and military industry development, referred to the issue if the existing shelters provided a high enough level of protection. As a result, the safety issues were becoming more and more complicated, leading the preventive solution towards modernizing the shelters, which would mean that the level of protection that shelters can provide at the same time points out to the type and character of the weapon that can be used. However, can such kind of a danger as atomic wars and nuclear disasters be solved by means of technology? Doesn’t a recommended way of protection actually point out to the illusion of safety? The questions and problems of safety, i.e. the existence of threat, that I deal with in this project, do not refer to the possibility that shelters can meet new “challenges” of modern weapons, but to the purpose and the intention of atomic shelters, to the fact that their existence is justifiable because of wars, and that, as such, they confirm the possibility of new ones. As much as shelters can create the illusion of safety, up to the same extent they allude to reasons for which the protection is needed. Considering the fact that usage of atomic shelters has been caused by devastation of wars or biological disasters, i.e. the consequences that these or similar can cause, the aspects of ideas on which the problems that I deal with were based, come from the dualism of the facts that shelters, providing certain kind of safety also witness that real safety does not actually exist; that safety that is being offered refers to the situations of general unsafe. At the same time observed as a synonym of protection and a symbolic picture of destroying, atomic shelters point to their own bipolarity and antagonism of their functionality, containing in that way the identity of spaces with authentic “underground” esthetic.