Journées Européennes du Patrimoine 2025

Journées Européennes du Patrimoine 2025: an invitation to (re)discover Le Signe—its architecture, exhibitions, and behind-the-scenes spaces—through unique and artistic tours on Saturday 20 and Sunday 21 September 2025.

This year’s activities have been designed around the national theme, “Architectural Heritage”, for the 42nd edition of the Journées Européennes du Patrimoine.

All events are free of charge. Some are open-access, while others—such as the vault room tours—have limited capacity and require advance registration with Le Signe.

Bookings: resa@cndg.fr / +33 (0)3 25 35 79 01

Programme – Journées Européennes du Patrimoine 2025

Saturday 20 September – “Living Architectures”

Special opening hours: non-stop from 10 a.m. to 6 p.m.

• Drop-in Workshop: “Architapes” by Mai Li Bernard
Available all day in Le Signe’s welcome area, this open-access workshop invites participants to take over a grid surface by creating two-dimensional buildings using colourful masking tapes.

• 3 p.m. & 4:30 p.m.: Guided tours by the CAUE of Haute-Marne
The Conseil d’architecture, d’urbanisme et d’environnement de Haute-Marne (CAUE) offers an expert perspective on Le Signe’s building and the urban transformation of the Chaumont train station district during two guided visits.

• 4 p.m.: Children’s Workshop (ages 6–12), “Graphi-trames / Graphi-briques” by Mai Li Bernard
In this playful workshop, children explore space by building modular structures with cardboard boxes.

Sunday 21 September – “Decoding the Signs”

Special opening hours: non-stop from 10 a.m. to 6 p.m.

• Drop-in Workshop: “Architapes” by Mai Li Bernard
Available all day in Le Signe’s welcome area, this open-access workshop invites participants to take over a grid surface by creating two-dimensional buildings using colourful masking tapes.

• 11 a.m.: Guided Tour – “Decoding the Signs”
Discover Le Signe through a guided tour exploring its history and architectural design, followed by a visit to the 31st International Poster Competition exhibition.

• 2:30 p.m., 3:30 p.m., and 4:30 p.m.: Guided tours of the vault rooms
By reservation only – limited to 15 participants per session.

Photos: ©Marc Domage (Le Signe); ©Richard Pelletier (vault rooms)