The towns within the SCI "Giara of Gesturi" - Albagiara, Assolo, Genoni, Genuri, Gesturi, Gonnosnò, Nuragus, Nureci, Setzu, Sini and Tuili – are located in the historical region of Marmilla. It is a vast area in which low hills alternate with wide plains. The region is characterized by the homogeneity of the mesh of the towns, which refers to an old way of employment dedicated to the cultivation of cereals, common in agricultural areas. These towns also offer a testimony to the urban forms present in the interior parts of Sardinia.
The network of villages preserved the urban structure of the past, telling the story of the region. Centuries ago, rural towns were just considered sentinel sites for the cultivated fields. To cultivate a territory, to live in it and to protect it, was a huge effort for the community that involves forms of exchange and binding rules. In some areas of Marmilla, the network of settlements is still recognizable, due to the level of homogeneity and integration that they have achieved. One can consider them as a single entity.
As time went on, the human settlements evolved, becoming self-regulating and self-sufficient individual entities, but without entirely losing their original character. Finally, in more recent times, the forms of local aggregation, combined with the development of new production systems, have radically transformed the profile of these rural villages. As a result, confirming the separation between the production area and the residential area in everyday life.
Nevertheless, the economy of the small towns of Marmilla has remained faithful to agriculture. A vocation that has left its mark on all the cultural events and architecture in the area, especially the articulation of living spaces, and in the shape of houses that were part of the production agricultural system: the houses could be granaries for the harvest or storage for tools. Along the streets of every small center, it is possible to see the main buildings - churches of different styles that are embellished by altarpieces, and old convents alternate with monumental gates, which lead to residential courtyards that are surrounded by porches (locally called sa lollas). Several stables, barns, and rooms especially built for the preparation of bread, are also still in good condition.