Le Chronographe takes visitors through the history of the ancient Gallo-Roman city of Ratiatum, which was discovered under the current town of Rezé and has been explored by archaeologists since the 1980s.
This project covers the archaeological site of Ratatium’s port, the Chapelle Saint-Lupien and the Centre for the Interpretation and Renewal of Heritage Sites, which is devoted to archaeological discoveries in Nantes and the surrounding region.
It is implanted at the heart of the archeological site of Saint-Lupien to Rezé and overhangs the chapel Saint-Lupien, as well as the vestiges of the old Gallo-Roman harbour district. Thanks to the digital, playful and interactive tools proposed in the permanent exhibition, the visitor experiments the methods of the archaeology and goes off to explore the history of Ratiatum. Center of metropolitan archaeological interpretation, Le Chronographe is at the heart of the archaeological current events of the metropolis and proposes a set of conferences, animations and temporary exhibitions.
For the 2026 summer event
Le Chronographe, Rue Saint-Lupien, Rezé
How to get there?
Public transport: Marguyonnes, Clos Bonnet, Le Corbusier, Mairie de Rezé
Self-service bicycles: Station Naolib Vélo libre-service Mairie de rezé (n°113)
All year round (except July and August)
Wednesday to Sunday, 2 pm to 6 pm
Closed on Mondays, Tuesdays and public holidays.
July–August (from 6 July)
Tuesday to Sunday, 2 pm to 7 pm
Closed on Mondays
Open on 14 July and 15 August
Booking required for groups.
Free for PASS Nantes holders
Book PASS Nantes
4€ - Reduced rate : 1,50 €
Pass Musées : 15 € (valid one year from date to date in the 5 metropolitan museums)
Free for under 18s, disabled people and their carers, jobseekers
Free on the first Sunday of each month, except July and August.
The entire site is accessible to people with reduced mobility: museum, temporary exhibition, terrace and belvedere with an elevator.
Panels translated into Braille, tactile device, sensitive to smell and touch Audio loop available at reception. Subtitled videos Text in FALC (easy to read and understand).
