Towards Virtual Cultural Heritage Routes. Development of Digital Models for Extended Accessibility of the H2020 Prometheus Project

The paper presents a methodological framework for the digital documentation, modeling, and dissemination of Cultural Heritage Routes within the H2020 PROMETHEUS project. It integrates multi-scale digital survey techniques (TLS, UAV photogrammetry, mobile scanning) with HBIM modeling and database construction to create structured digital replicas of heritage sites. These models are connected within virtual platforms to enable extended accessibility, supporting both analysis and public engagement. XR technologies (AR and VR) are employed to enhance storytelling, interactive exploration, and design scenarios, allowing users to visualize historical transformations and future redevelopment proposals. The approach emphasizes the creation of interoperable, multi-layered information systems linking geometry, metadata, and cultural narratives across territorial, urban, and architectural scales.