The Museu de Arqueologia D. Diogo de Sousa is a public body, dependent on the Direção Regional de Cultura do Norte and the Ministry of Culture.

Created in 1918 and revitalized in 1980, the Museu D. Diogo de Sousa is an archeology museum, opened to the public since June 2007 in a building constructed from scratch. Its collections are fundamentally constituted by assets resulting from the archaeological investigation that has been carried out in the North region, especially in the city of Braga.

Its collection covers a vast chronological and cultural period, between the Paleolithic and the Middle Ages. The permanent exhibition is organized around four large nuclei. The first includes the Paleolithic, the Mesolithic, the Neolithic, the Chalcolithic, the Bronze Age and the Iron Age. From a geographical point of view, the area of provenance of these collections covers the Minho region.

In the other rooms, the collections come from Bracara Augusta and the surrounding territory. In the second room you can see elements that illustrate the integration of the city of the Roman Empire and the development of local activities: ceramics, metal and glass. In the third room you can get in touch with information alluding to urbanism, a public and domestic Roman space. In the last room, in addition to a set of Roman milestones from roads, you can see the collection of necropolises.

Some findings associated with religiosity in the Roman and Paleochristian period close the permanent exhibition. The basement of the Service Block preserves traces of a house "in situ" from Roman times, with a mosaic.