Holograd is an AR/VR mobile platform for systematic digital enrichment of public spaces, i.e. creation of a large database storing all relevant information about a particular site, its history, culture, sights, personalities, events and objects, enabling through diverse scenarios, an innovative form of communication and contemporary presentation of cities and cultural heritage as a whole. The project presents a unique regional mixed reality platform that already hosts more than 10 experiences, incl UNESCO heritage sites such as Felix Romuliana, but also contemporary street art projects.