The study of cultural heritage is a multidisciplinary challenge. Working in this area meets several peculiarities, which put emphasis on a full study of the elements of the natural environment, as well as the need for brilliant techniques of construction to be used. The detailed studies of the monuments’ characteristics in a series of engineering areas over the last decade have led us to the conclusion that the now gone creators of these monuments have achieved an important characteristic of their wonders– securing their durability and longevity. From an engineering standpoint, the examples are valuable in terms of the materials as well as the choice of a structural solution as their most important feature.

In several sites with world cultural heritage status - the conservation and impact of the monument in the perspective of eternal longevity have been studied, while analysing construction and the overall vision of the builders to the specific creation. It is these aspects that are the subject of research, and it turns out that their role in preserving the monument is extremely important.

This publication examines two monuments with extremely distinctive characteristics, requiring complex engineering research and thorough knowledge of natural and anthropogenic materials and their application in the construction techniques of the past. This is an example, and a basis for adequate solutions with an approach for long-term preservation of the structures.