According to the Recommendation on the Historic Urban Landscape (2011), a historic urban landscape has to be understood as a product of the historical stratification of both cultural and natural values, with the respective attributes. This notion goes beyond the definition of “Historic Centre” or “ensemble”, to include a broader urban context as well as its geographical setting (Art. 8). That is, it includes the site’s topography, geomorphology, hydrology and other natural features, its built mass (historic and contemporary), its infrastructures (above and below ground), its open spaces and gardens, its land use patterns and spatial organization, perceptions and visual relationships, as well as all other elements of the urban structure (Art. 9).