Despite the old image of degradation and fall, modern research showed that Roman Greece underwent a series of changes which are best reflected in the central public space of the ancient city, the Agora. A variety of different factors such as the dynamic presence of the local elite, the exploitation of the past, the imperial presence or the will to maximize functionality contributed to the formation of the spatial and architectural framework of the Agora. In many cities the development of the Agora is best described by the juxtaposition of old and new, which was achieved by the preservation and enhancement of the traditional landscape as well as by its enrichment with new buildings many of which, like for instance the roman style baths, improved the provision of services. In this context the term Romanization describes the effort of each city to adapt to the requirements of the urban framework of the imperial period, a framework described by monumentality, functionality, promotion of imperial ideology, local pride. Roman colonies were the newest additions in the city pattern of Greece. In contrast to the roman colonies in the West the roman foundations in Greece were founded over preexisting cities with long history. Therefore, they raise a series of questions concerning not only their architectural development but also the process of restructuring the existing landscape in order to create an urban framework that reflects their romanitas.