items II and III of art. 1," which covers the listed property and the buildings, urban groups and sites of historical, artistic, archaeological, paleontological, ecological, landscape and scientific value located in the Special Sector of Heritage, Historical, Cultural and Landscape Interest and in the Special Sector of the Historic Center. However, in recent years several restoration projects, even for important heritage properties, have ignored legislation and internationally accepted practices, producing interventions that disfigure the original characteristics of the buildings, causing them to lose their authenticity through so-called "revitalizations" or "retrofits", which are in fact decorative or utilitarian modernizations that focus on adapting the building to a new use, usually commercial, without paying attention to its symbolic and documentary value and to the preservation of the authenticity of the ensemble, which are the central values in all international conservation charters. According to researcher Marcelo Caon, "the concept of revitalization goes in the opposite direction of document preservation and, instead of using it as an elucidative object of memories, social practices, and the misfortunes of urban expansion in certain periods, it gains a new meaning that generates a demand for services, leisure, and attributes values to certain groups". Historic buildings of great importance in the center are still being slowly disfigured by repetitive small arbitrary interventions, such as the Canonical House and the Cathedral. Another typical example of the utilitarian and market approach to heritage assets, disregarding essential documentary aspects, was the recent "revitalization" of the Metallurgical Abramo Eberle complex, which originally occupied almost a city block and was composed of several buildings. Although the complex was previously protected by the council, the same entity authorized that the secondary buildings inside the block be demolished to make way for a parking lot, and that the interior of the main building undergo significant changes, with elements being demolished and others added, in order to transform the complex into a center for leisure, gastronomy, culture, commerce, and services. Another "revitalization" was attempted in the historic Dante Alighieri Square, which foresaw the removal of traditional elements, but generated controversy and ended up forbidden in court. The reform had also been approved by the council. Main constructions Today there are few buildings left that were built in the traditional stone technique in the urban area, and none in the Historic Center; among the traditional wooden family houses, few survive in the city, and very few in