The project
Why Preserving Assisi
The Basilica of Saint Francis is renowned for some of the most remarkable cycles of medieval painting. Its frescoed surfaces and the close relationship between painting and architecture make the complex a landmark in the history of medieval art and a key place for understanding the Franciscan message.
The vulnerability of this heritage became particularly clear after the 1997 earthquake, when the conservation of the complex became an absolute priority. In that context, the photographic documentation produced by Franco Cosimo Panini Editore (Gruppo Panini Cultura) as part of the Mirabilia Italiae publishing project proved invaluable, providing a sound basis for rigorous, scientifically informed restoration work.
Today, the digitisation of the entire Basilica of Saint Francis is a natural continuation of this commitment. It provides a resource for conservation, research and public engagement, while the creation of a digital twin ensures that an accurate digital record of the Basilica can be preserved over time.
Preserving Assisi is an evolving project. Over the coming months, digitisation campaigns will continue, with new content and findings progressively added to the platform, expanding the digital documentation of the Basilica over time.

Project progress
Preserving Assisi is a large-scale project dedicated to the digitisation of the Basilica of Saint Francis, designed to create a complete digital record for research and long-term condition monitoring.
The project brings together gigapixel and 360° photographs, 3D models, point clouds, metadata and collections of texts. These materials document the painted surfaces and spaces of the complex, supporting research, conservation and new ways of discovering its heritage.
For Preserving Assisi, digitisation means producing accurate data that can serve as a lasting reference and provide practical support for preventive monitoring and restoration work. It also means leaving future generations a precise digital record of a centuries-old heritage of art and faith.

Preserving Assisi is a project by Haltadefinizione, a tech company of Gruppo Panini Cultura, and the General Custody of the Sacred Convent of Saint Francis of the Friars Minor Conventual, carried out through an association in participation established by public deed. It is under the patronage of the National Committee for the Celebrations of Saint Francis, the Region of Umbria and the Municipality of Assisi, and is developed in collaboration with the University of Florence.
Digitisation is approximately 50% complete.
Through 2027, new acquisition campaigns will bring more places, works and details of the complex online. Gigapixel and 360° photographs, 3D models, point clouds, metadata and collections of texts form a growing digital memory. This first release opens part of the journey to everyone, with new acquisitions and content being added progressively.
Project milestones
A digital memory built over time, and still growing.
A photographic record
Pre-restoration photographic campaign in the upper and lower churches.
Franco Cosimo PaniniGigapixel detail
Post-restoration gigapixel campaign in the Upper Basilica.
HaltadefinizioneThe first 360° visit
360° digitisation of the Upper Basilica.
HaltadefinizioneNew gigapixel acquisitions
Digitisation of the upper and lower churches.
The complex in 360°
Digitisation of the Upper Basilica, Lower Basilica and exterior.
Preserving Assisi online
Launch of the platform to explore the Basilica’s digital memory.
- Planned
An expanding collection
Further digitisation campaigns.
- Planned
New data, new perspectives
Integration of other data, including 3D models.
The project in numbers

- Photographs
- 24,729
- Gigapixel images produced
- 28
- 360° images created
- 3
- Data size
- 709 GB