Book excerpt: Reconstruction and Restoration of Architectural Heritage 2021 presents contributions on various aspects of the study, protection and restoration of architectural monuments and on the reconstruction of major historical urban development sites. Moreover, various complex and problematic aspects of engineering reconstruction of monuments are discussed. A wide range of issues is considered in the process of preserving historical heritage, including: the historical formation of buildings, construction and territories; the conservation, reconstruction and restoration of buildings and constructions; the transformation of historical spaces and areas. parallels and features in the development of urban planning, architecture and construction art in Russia and Spain the fate and work of Augustine Augustinovich Betancourt This collection of papers combines contributions about the history and restoration of many of the largest nature reserves, estates, cities and monuments. It is intended for academics and professionals involved in the history and restoration of nature reserves, estates, cities and monuments.