The Mausoleum of Theodoric: Archaeoastronomy, Numbers, Geometry and Communication

The following paper focuses on the Mausoleum of Theodoric (520 ca.), one of Ravenna’s Byzantine monuments and a UNESCO heritage site, presenting the results of different phases of research that began in 2015. Starting from the instrumental survey carried out with laser-scanner and digital photogrammetry technology, the unit of measurement and the geometric properties of the decagonal shape of the design of this singular two-level building were analysed. The archaeoastronomical study has highlighted possible meanings of the orientation of the building and the positioning and sizing of small wall openings. Finally, a 3D model was developed from the survey data to verify the astronomical phenomena and to aid in the multimedia communication of the scientific content. It is increasingly clear how virtual models, both interactive and non-interactive, constitute an important edutainment tool. This element is indispensable to the development of contemporary methods of dissemination for the fruition of cultural sites and artefacts.