The article examines in detail the aspects of preservation, restoration, and revitalization of historical and architectural heritage sites on the example of the functioning of the «Kyiv Fortress» National Historical and Architectural Museum.
 All aspects of the activity of the «Kyiv Fortress» National Historical and Architectural Museum on the maintenance and use of the territories and buildings of the museum in the past, from the time of the Kyiv Fortress to the present day are considered.
 In particular, the main directions of the museum's work are covered:
 
 The historical role of the Kyiv Fortress as one of the city-forming factors;
 Defensive use of the complex during its existence and in our time;
 The modern role of the complex as a cultural and educational institution;
 Modern role of the complex as a tourist and recreational facility;
 Research activities in the field of fortification.
 
 This article is a program publication that precedes the publication of a series of articles on scientific analysis of methods and techniques for the restoration of individual structural elements of stone and earth fortifications.
 Subsequent publications will also consider in detail the design features of the creation, restoration, and maintenance of territories and buildings of the «Kyiv Fortress» National Historical and Architectural Museum.
 There is also a series of local lore publications on architectural and fortification monuments of Kyiv and Kyiv region - territories and buildings of Kyiv fortified district, unfinished transport tunnels under the Dnieper (so-called Stalin tunnels), Cold War megalithic structures such as «Duga» radar station, etc.