The continuity of life in Zadar was not interrupted after antiquity, but, adapting to new conditions, continued directly in the Middle Ages. Medieval Zadar occupied the same area as the ancient one, and the Antique network of streets was preserved and it determined the character of the city in the new period. Many ancient buildings remained in use, but that does not mean that there were no changes in the urban plan of the city. In the first place, Zadar got new walls that covered a larger area than the ancient ones. Segments of this rampart were discovered on the southeast and southwest sides of the city. The city insulas lengthened with the disappearance of every other cross street. The municipal center had moved closer to the land gate, while the cult remains on the forum thus giving the city a bicentric structure. The biggest difference is manifested in the increase in the number of sacral buildings.