This article deals with the role of photographic documentation in conservation efforts. Using the example of Islamic sites in Libya, historic inn buildings located in Ukraine and Poland, the centres of Polish historic cities destroyed during World War II, and the monuments of Ukraine destroyed during the period of "militant atheism," World War II, and the ongoing Russian-Ukrainian war, it is proven that often photographic documentation of objects becomes the main source of information about destroyed or damaged objects. The purpose of this paper is to analyse the value of photographic documentation for conservation and preservation efforts. The authors point out that it can also be used for eye-tracking studies of visual perception of conservation objects, both by local communities, i.e., nonprofessionals in the field of architecture, as well as perception by architects and conservators.