This paper discusses two kinds of research implemented to federate different disciplines and knowledge in support of archaeological research and the protection of the tangible and intangible heritage of ancient Tarquinia. The first part of the work examines the results obtained from the archaeological analysis, the concrete implications on the sustainability of ancient cultural landscapes and their possible transmission over time as an expression of the culture of a community. The second part of the work presents the reading and analysis of the ancient landscape and sites through chrono-stratigraphy, especially regarding two case studies in Tarquinia: the ‘monumental complex’ and the Ara della Regina sanctuary. The work focuses on the intangible aspects of the landscape as a result of archaeological research in the archaeoastronomical field. The orientation of the sacred structures and landscapes is presented herein regarding Etruria and the two case studies. The results shed light on the city’s perception by the population, identifying it as an entity that held and sheltered every aspect of the community’s life. The preliminary results of this study have made it possible to recognise aspects of significant historical and cultural value, which are the heterogeneous expression of a solid identity to be safeguarded and developed in a sustainable way.

This paper studies the two main monuments of the Grotta Porcina necropolis (Vetralla, VT): a monumental tumulus and a circular base, the latter interpreted as a scaled-down replica of the former. The aim is to clarify the role and function of this architectural miniaturization within the context of funerary cult practices. The analysis, supported by comparisons with Ceretan and Tarquinian models, shows that the reduction in scale enhanced visual control over ritual actions and enabled more direct participation by members of the community, without diminishing the symbolic value of the structure. L’articolo analizza i due principali monumenti della necropoli di Grotta Porcina (Vetralla, VT): un tumulo monumentale e un basamento circolare, quest'ultimo interpretato come una replica in scala del primo. Obiettivo della ricerca è chiarire ruolo e funzione di questa miniaturizzazione architettonica nel contesto del culto funerario. L’analisi, basata su confronti con modelli ceretani e tarquiniesi, mostra che la riduzione di scala consentiva un controllo visivo più efficace dei rituali e una partecipazione più diretta dei membri della comunità, senza alterare il valore simbolico della struttura.