Cities exploration through overlapping of digital and physical world

—As the digitalization of human knowledge progresses, an increasing number of different layers of digital information related to places situated in the real world is available, and it can be used to enhance the visiting experience of cities, not only for tourists but also for local citizens and any other sort of visitors. In a collaboration with Municipality of Pisa we are deploying an integrated system of city signage with special QR codes pointing to a software system called Signs that we developed with the goal of selecting the information layer suitable for a particular visitor. We are now improving this system with generative AI assistants capable of generating tailored content for specific visitor with dynamic support for multiple languages according to the used AI model capabilities. In this extended abstract we introduce the architecture of the system and outline its benefits.