The restoration and recovery inside the Castle of Calafell were carried out years ago. Later, however, excavations were conducted in its extramural environment in which the remains of human activities of great interest: burials, food storage, remnants of older buildings and remains of the passage of vehicles were found. This convinced the Authorities that not only the castle but especially its outline consisted of an archaeological site that should be musealized. Hence the project called Archaeological Park: a series of actions carried out in order to make known the existing archaeological sites , but at the same time also, redevelop and adapt to civic and urban life the old city adjacent to the castle. Key interventions have included the redevelopment, the night lighting and street furniture. Through the quartered stones of the pavement, the construction of a set of viewpoint-platforms, care in the night lighting and also through graphic explanation stations and the use of interactive electronic technologies (mobile phones), cultural information is provided in an urban culture in which civic and commercial life is still fully active.