Established by the Greeks around 325 BC, the fortified maritime outpost and colony of Olbia, which means "the blessed" is the only example of an entirely preserved Greek city on the Provençal coast and the only witness of the network of Marseille (Massilia) colonies that have been preserved in its completeness. Its military vocation enlightens the originality of its plan: a square enclosure flanked by towers that demarcates a zone of nearly three hectares where are divided 40 blocks of houses on either side of two main orthogonal paths. The remains found in the archaeological site of Olbia give to see the evolution of the colony for nearly thousand years with ten stratifications of ruins including archaeological evidence from Hellenistic times (plan, blocks of houses and roads), Roman (port, shops and baths) and medieval (Cistercian abbey) during which the relationship to the sea and territory is omnipresent. Since the mid-19th century, archaeological excavations were organized and the archaeologist Michel Bats with his team have been supervising those excavations from 1960 until now, generating a nomenclature and classification of the artifacts. This current research project examines the valorization of the researches done by Michel Bats and his team when creating a representation of Olbia as well as the improvement in communicating these studies to public visitors. For achieving this goal, the digital models are used and considered as a valuable interaction and immersion device. These 3D models are now used as a reference project at the Laboratory of EVCAU at the National School of Architecture of Paris Val de Seine.

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