Visione sostenibile (Sustainable vision in the conservation of cultural heritage project)

"Who less sees, thinks nothing" in four words Filippo Juvarra emphasizes the close link between visual culture and architecture theory and practices. In this perspective, what meaning can be attributed (by designers or users), to their "own" architecture and their "own" city? Considering the landscape as a heritage to be safeguarded (according to the Europe Council, the landscape is "perceived territory"), new plants for renewable energy "with environmentally sustainable technology" are sustainable also from the point of view of visual consistency, and therefore of the "sustainable vision"? We are all ecologists and believe in eco-sustainability, but we have to take into account also the "sustainable vision" issue, that is managed by formally coherent and congruent actions in the architecture and landscape between text and context in all scales?. The same inconsistencies can be detected for new integrations (or recovery projects) in the historical structure of the city, which is characterized by specific aspects concerning what we might legitimately define its "visual structure". Similar problems can be finally found when the same visual characters are not analyzed, studied, acknowledged and valued appropriately within restoration and-or conservation projects, both in architectural dimension as well as in the urban one. A careful analysis of these phenomena disciplinary identified - will avoid that such inconsistencies may exacerbate the increasingly diffused "cultural loss". In support of this thesis will be mentioned, within a large series of case studies being analyzed, national and international examples, both positively and negatively.