It is difficult to escape from spatial metaphors to know and describe the characteristics of time and its flow. Space is easier to think about, depict and study as it is a material testimony to the lives of the people who built and lived in it. “No material thing can not exist in time” (Boncinelli 2006). The archaeological analysis of landscapes over time, the spaces par excellence, can provide important elements for the knowledge of history if carried out with a method (light archaeology) anchored to a well-defined research topic such as, in this case, material study of the Guidi Lordship. The count family built and defined the Tuscan-Romagna Apennine space between the 10th and 13th centuries. with cultural specifics so marked that they still mark the territory concerned today. The construction of parishes and castles, desired by the counts, the connected roads, the economic activities that developed here transformed the landscape and the lives of the people who lived there. The results of the research have led to innovative proposals for public archaeology, allowing a constant dialogue between the present and the past with a view to social development.