Bosnia is a historical name of the present Bosnia and Herzegovina, the Balkan country which has existed in various constitutional forms for around 1000 years. Development of Bosnian cities is a reflection of different influences through history. This paper is focused on remains of medieval time and fortification objects. Fortresses are symbols of various things for various peoples, but also are part of collective identity, much more than just military fortified structures. There is something inherently, compelling, and mystified by intrigue and drama, curiosity, loneliness, past and its impact on our present inside the ruins and remnants of old fortifications. They create a sense of hope despite their decay. After heritage has been evaluated to have outstanding significance its usage in future must be defined. According to the result of numerous studies conducted in this field of scientific work, evident is the necessity for a systematic approach that can be characterized as the inevitability of the existence of management plans. Causes of collapses of medieval forts are various and they range from insufficient tensing capacity, “economical aspect” of original structure, level of technical culture of that time, “extended” duration of the facility, mistakes made while creating the original design, to the inevitable wear-and-tear process (results from physical-chemical changes of properties of materials). As well, it is necessary to consider following possible changes that occurred during time in: surrounding, purpose of a facility, ground (excavation, change of water level), and certainly, in structure itself (addition, partial demolition etc.). Intervention on the monument involves finding a reasonable and acceptable restoration solution that is going to lead to recovery and respect the value of the historical monument at the same time.

High vertical form in architecture demonstrates a tendency towards something higher or divine, something beyond the ordinary life, more than something earthly, as if it is leading us, or helping us to hear voices and sound, or perhaps to see more clearly. High vertical form in architecture is not exclusively associated with religion. It is by all means a power, and demonstration of power. In the case of construction intervention of such objects, two problems immediately emerge: the first concerns the usual and expected approach, in the most number of cases, to keep the role and geometry of constructive, now damaged elements. This situation can be additionally complicated by request, or better to say a need, which is very often present, to strengthen those elements with respect to its original state. Other, perhaps even bigger problems, concerns the possibility of embedding. In this article ten minarets and church towers are presented, carefully chosen as representatives from threatened cultural heritage towers. The computer program SAP 2000 was used to analyze the towers with shell elements. Analysis has been conducted with altered mechanical properties of the materials towers are built from as follows: modulus of elasticity, Poison’s coefficient and specific weight of the material for the cases of better material characteristics and bad characteristics of the material in relation to the actual situation.