The Journées du Patrimoine (Heritage Days) are probably at the top of the list. This annual cultural event, usually held on the third weekend of September, awaits you in the four corners of Europe to offer you a fine program of often free visits andoriginal activities at the heart of heritage treasures. In Paris and the Île-de-France region, you won't want to miss out on this ballet of cultural highlights, as the Paris region is sure to surprise you at every edition!
The Journées du Patrimoine are also a great opportunity to discover the treasures of theÎle-de-France region through places and monuments that are still too little known! Why not take advantage of this year's event to conquer the heritage gems of the Hauts-de-Seine department?
Just what you need: Boulogne-Billancourt , on the outskirts of Paris, offers an extremely rich and varied program of events to keep you busy for at least a day. Boulogne-Billancourt is a multi-faceted city, with its urban areas, village districts, peaceful banks of the Seine and lush woodland landscapes. You'll have the chance to explore the city in all its many facets during the Heritage Days.
Journées du Patrimoine 2025 : découvrez l'ambassade de Mongolie à Boulogne-Billancourt (92)
À l’occasion des Journées européennes du Patrimoine, l’ambassade de Mongolie, située à Boulogne-Billancourt, vous ouvre exceptionnellement ses portes le samedi 20 septembre 2025. Au programme ? Une plongée culturelle à la découverte de ce très beau pays. [Read more]
Journées du Patrimoine 2025 at fashion photographer Frank Horvat's studio in Boulogne-Billancourt (92)
The home studio of the great fashion photographer Frank Horvat opens its doors for the Journées du Patrimoine 2025, on September 20. In this Boulogne-Billancourt studio, discover half a century of photographs and archives, with commentary by the artist's daughter in person! [Read more]
Journées du Patrimoine 2025 au Musée Paul-Belmondo (92) : le programme
Durant les Journées du Patrimoine 2025, on part à la découverte de l'œuvre du sculpteur Paul Belmondo, le père du célèbre acteur, au sein du musée situé à Boulogne-Billancourt qui lui est consacré. On vous dévoile le programme ! [Read more]
Exploring the Heritage Journeys for the 2025 Heritage Days in Boulogne-Billancourt
Aucun événement annoncé à ce jour, le programme est mis à jour en fonction des annonces officielles.
Aucun événement annoncé à ce jour, le programme est mis à jour en fonction des annonces officielles.
Aucun événement annoncé à ce jour, le programme est mis à jour en fonction des annonces officielles.
Aucun événement annoncé à ce jour, le programme est mis à jour en fonction des annonces officielles.
Aucun événement annoncé à ce jour, le programme est mis à jour en fonction des annonces officielles.
Heritage Days 2025 at the Archives Municipales de Boulogne-Billancourt
Aucun événement annoncé à ce jour, le programme est mis à jour en fonction des annonces officielles.
Heritage Days 2025 at Notre-Dame Church in Boulogne-Billancourt
Aucun événement annoncé à ce jour, le programme est mis à jour en fonction des annonces officielles.
Heritage Days 2025 at the United Protestant Church of Boulogne
Aucun événement annoncé à ce jour, le programme est mis à jour en fonction des annonces officielles.
Journées du Patrimoine 2025 at the Saint-Nicolas-le-Thaumaturge Orthodox Church in Boulogne-Billancourt, France
Aucun événement annoncé à ce jour, le programme est mis à jour en fonction des annonces officielles.
Heritage Days 2025 at the Boulogne-Billancourt Synagogue
Aucun événement annoncé à ce jour, le programme est mis à jour en fonction des annonces officielles.
Heritage Days 2025 at the Sainte-Thérèse-de-l'enfant Orthodox Church in Boulogne-Billancourt, France
Aucun événement annoncé à ce jour, le programme est mis à jour en fonction des annonces officielles.
The Journées du Patrimoine 2025 in Boulogne-Billancourt, the 1930s trail
Architectural journeys of the 1930s
A city of modernity, Boulogne-Billancourt proved a particularly fertile testing ground for 20th‑century architecture. Architects cut their teeth there, including Le Corbusier, Mallet-Stevens, Lurçat…
Participation requirements: Free | No reservation required
Hours: Saturday, September 19, 2026 — 2:30 PM to 4:00 PM, 4:30 PM to 6:00 PM | Sunday, September 20, 2026 — 10:30 AM to 12:00 PM, 2:30 PM to 4:00 PM, 4:30 PM to 6:00 PM
Heritage Days 2025 at the Issy-les-Moulineaux stopover in Boulogne-Billancourt
Aucun événement annoncé à ce jour, le programme est mis à jour en fonction des annonces officielles.
Heritage Days 2025 at the Saint-Francois-de-Sales church house in Boulogne-Billancourt
Aucun événement annoncé à ce jour, le programme est mis à jour en fonction des annonces officielles.
Heritage Days 2025 at the association de géologie, minéralogie et paléontologie le lutecien in Boulogne-Billancourt
Aucun événement annoncé à ce jour, le programme est mis à jour en fonction des annonces officielles.
Heritage Days 2025 at the Western Cemetery in Boulogne-Billancourt
Aucun événement annoncé à ce jour, le programme est mis à jour en fonction des annonces officielles.
Heritage Days 2025 at Pierre Grenier Cemetery
Aucun événement annoncé à ce jour, le programme est mis à jour en fonction des annonces officielles.
Heritage Days 2025 at Boulogne-Billancourt town hall
Aucun événement annoncé à ce jour, le programme est mis à jour en fonction des annonces officielles.
Guided tour of Boulogne-Billancourt City Hall
Tony Garnier, the Grand Prix de Rome–winning architect, and André Morizet, the senator-mayor of Boulogne-Billancourt, join forces to deliver, in 1934, a new town hall, a symbol of Boulogne and Billancourt’s union.
Participation requirements: Free | No reservation required
Schedule: Sunday, September 20, 2026 — 2:00 PM to 3:00 PM, 3:00 PM to 4:00 PM
Boulogne choirs in concert
Artichoke Choir, Harmony Choir, La Lupinelle, The Imaginary Stage, Life Through the Voice, Peeda’s Gospel.
Participation requirements: Free | No reservation required
Schedule: Sunday, September 20, 2026 – 4:00 PM–5:30 PM
Heritage Days 2025 at the Marie Walewska House in Boulogne-Billancourt
Aucun événement annoncé à ce jour, le programme est mis à jour en fonction des annonces officielles.
Heritage Days 2025 at the Paul Landowski Museum in Boulogne-Billancourt
Aucun événement annoncé à ce jour, le programme est mis à jour en fonction des annonces officielles.
Heritage Days 2025 at the Résidence du Point du Jour in Boulogne-Billancourt
Aucun événement annoncé à ce jour, le programme est mis à jour en fonction des annonces officielles.
Heritage Days 2025 at the Protestant Temple in Boulogne-Billancourt
Aucun événement annoncé à ce jour, le programme est mis à jour en fonction des annonces officielles.
Heritage Days 2025 at the Boulogne-Billancourt Tourist Office
Aucun événement annoncé à ce jour, le programme est mis à jour en fonction des annonces officielles.
Heritage Days 2025 at the Pavilion of Projects
A discussion of the work of Chloé Quenum: The Madness of Seguin Island
With the participation of :
* Chloé Quenum, artist; Robert Kosmann, former Renault-Billancourt worker;
* Emmanuelle Dupuy, former secretary and typist at Renault-Billancourt, feminist activist; Daniel Théry, former engineer, president of AMETIS;
* Arezki Amazouz, former skilled worker (OS) at Renault-Billancourt, president of ATRIS.
* Moderation: Martin Guinard, artistic director of “Voyage en Industries”
First piece in the artistic journey “Voyage en Industries,” La Folie de l’île Seguin grew out of a close dialogue between artist Chloé Quenum and former Renault-Billancourt workers. Installed near the Daydé Bridge, which once led to the entrance of the Seguin island factory, it is made from spare parts sourced from Renault models produced before the site’s closure.
Completed in the summer of 2026 and unveiled to the public on the occasion of the Daydé Bridge opening, La Folie de l’île Seguin will be at the heart of this meeting. The artist and several witnesses of Renault-Billancourt’s industrial history will share behind-the-scenes stories of the work’s creation, their memories of the site, and the exchanges that fed the project.
The gathering, held at the Pavilion of Projects, will be followed by a guided tour of the work, in the presence of the artist and the witnesses.
Meet at the Pavilion of Projects
https://ileseguin-rivesdeseine.fr/fr
Participation terms: Free of charge - Free | No reservation required
Schedule: Saturday, September 19, 2026 — 11:00 a.m.–12:30 p.m.
Guided tour “Discovering the Sculptures of Île Seguin” with an artistic surprise
The new public spaces on Île Seguin, gradually opening from January to July 2026, host a remarkable collection of contemporary sculptures that engage with the site’s history and landscapes.
The Parc départemental Gauthier Mougin’s art trail explores ideas of trace, memory and imprint through works by Peter Stampfli, Marta Pan, Didier Marcel, Jacques Villeglé, Jean-Charles de Castelbajac, among others. On the forecourt of Pointe des Arts, pieces in varied visual languages, including works by Erik Dietman and Stefan Rinck, invite a sensitive and playful exploration.
Arriving on Île Seguin via the Daydé Bridge is marked by an original creation from Chloé Quenum, La Folie de l’île Seguin, honoring the former Renault factory workers. This work is also associated with the “Create” stop on the “Voyage en Industries” route.
Set off to discover these works that turn Île Seguin into a genuine open-air museum, made possible thanks to the support of the Hauts-de-Seine Department, the City of Boulogne-Billancourt, the Emerige Endowment Fund, the Centre national des arts plastiques (CNAP) and the Île-de-France Regional Fund for Contemporary Art (FRAC).
At the end of your visit, an artistic surprise awaits… keep your eyes peeled!
See you at the Pavilion of Projects
https://ileseguin-rivesdeseine.fr/fr
Participation conditions : Registration on our website is free - https://ileseguin-rivesdeseine.fr/fr | Reservation required
Schedule: Saturday, September 19, 2026 — 2:00 PM to 3:30 PM
Guided tour “Journey Through Industry” with AMETIS’ memory keepers
Follow the "Voyage in Industries" route with the memory guides from the Association de la maîtrise, de l’encadrement et des techniciens de l’Île Seguin (AMETIS). Through their testimonies, get the region’s industrial history from a lively, profoundly human perspective.
On this occasion, also admire the first work along the route, La Folie de l’île Seguin by artist Chloé Quenum. Created near the former entrance to the Seguin Island factory, it pays tribute to all the workers and technicians who shaped the site's history.
Participation conditions: Reserve on our website — Free; Booking required — https://ileseguin-rivesdeseine.fr/fr
Schedule : Saturday, September 19, 2026 – 3:00 PM to 4:30 PM
Guided tour “Voyage en Industries” with Emmanuelle Dupuy
Follow the "Voyage in Industries" journey with Emmanuelle Dupuy, a former Renault-Billancourt employee, feminist activist and co-founder of the "women's group." Through her testimony, discover the territory's industrial history from a vivid and deeply human perspective.
On this occasion, also admire the inaugural artwork of the route, La Folie de l’île Seguin by artist Chloé Quenum. Created near the former entrance to the Seguin Island factory, it pays tribute to all the workers and technicians who helped shape the site's history.
Rendez-vous at the Pavilion of Projects
https://ileseguin-rivesdeseine.fr/fr
Participation requirements: Register on our website — Free | Booking required — https://ileseguin-rivesdeseine.fr/fr
Schedule: Sunday, September 20, 2026 — 11:00 AM–12:30 PM
Interview with artist Stefan Shankland: a “Marble From Here” sculpture for the heart of Billancourt Park
Stefan Shankland’s work draws on natural and human transformation processes that shape the landscape. Flossile is a horizontal sculpture conceived for Billancourt Park, built from more than 25 tons of rubble recovered from demolition and construction sites that are reconfiguring the district. At ground level, the mineral image it creates suggests, in turn, the flows and meanders of a river, geological strata, or the traces of the automotive industry that have traversed and shaped Boulogne-Billancourt over the 20th century.
Starting in 2025, the creation of this nearly 65-meter-long piece enters a decisive phase: on-site production, which will run through November 2026. On this occasion, come meet Stefan Shankland near the project site to discover his approach, chat with him, and see the project as it takes shape.
Meet at the foot of the Daydé Bridge, at the 42 bus stop
https://ileseguin-rivesdeseine.fr/fr
Participation requirements: Meet at the foot of Daydé Bridge, at the 42 bus stop - Free | No reservation
Schedule: Sunday, September 20, 2026 — 2:00 PM to 3:30 PM
Guided tour "Journey into Industry" with ATRIS’s memory keepers
Follow the “Voyage en Industries” journey with the memory guides from the Association of Retired Renault-Billancourt Workers of Île Seguin (ATRIS). Through their testimonies, discover the region’s industrial history from a vivid, deeply human perspective.
On this occasion, also take in the first artwork of the route, La Folie de l’île Seguin by artist Chloé Quenum. Created near the former factory entrance on Île Seguin, it pays tribute to the many workers and technicians who helped shape the site’s history.
Meet at the Pavilion of Projects
Participation conditions: Reserve on our website - Free | Booking required - https://ileseguin-rivesdeseine.fr/fr
Schedule: Sunday, September 20, 2026 — 3:00 PM to 4:30 PM
Family workshop for children aged 6–11: “Memory Madness”
For more than a century, the story of Île Seguin has been inseparably linked to Renault. The island was a shipyard-scale factory, home to foundry, forge, textile, rubber, and cardboard workshops that produced a multitude of industrial parts. It’s from reproductions of some of these parts that Chloé Quenum has revived the tale and created her work, "Seguin’s Folly." Through a collection of shapes and textures, children will craft their own Folly, linking memory with imagination, the past with the present, and history with inspiration. To do this, students will build a scale model using a cardboard frame, and a materials kit will be provided.
Meet at the Pavillon des projets
https://ileseguin-rivesdeseine.fr/fr
Participation requirements: Booking on our website - Free | Reservation required - https://ileseguin-rivesdeseine.fr/fr
Schedule: Sunday, September 20, 2026 — 3:30 PM to 5:00 PM
Heritage Days 2025 at the Maison Walewska in Boulogne-Billancourt
Aucun événement annoncé à ce jour, le programme est mis à jour en fonction des annonces officielles.
Heritage Days 2025 at the Landowski amphitheatre in Boulogne-Billancourt
Aucun événement annoncé à ce jour, le programme est mis à jour en fonction des annonces officielles.
Heritage Days 2025 at Landowski Space in Boulogne-Billancourt
Aucun événement annoncé à ce jour, le programme est mis à jour en fonction des annonces officielles.
Aucun événement annoncé à ce jour, le programme est mis à jour en fonction des annonces officielles.
Aucun événement annoncé à ce jour, le programme est mis à jour en fonction des annonces officielles.
Aucun événement annoncé à ce jour, le programme est mis à jour en fonction des annonces officielles.
Heritage Days 2025 at the Amicale Salmson in Boulogne-Billancourt
Aucun événement annoncé à ce jour, le programme est mis à jour en fonction des annonces officielles.
Heritage Days 2025 at the Federation of Regional Groups of Renault (FARGR) in Boulogne-Billancourt
Aucun événement annoncé à ce jour, le programme est mis à jour en fonction des annonces officielles.
Heritage Days 2025 at the Georgette Boeuf Garden in Boulogne-Billancourt
Aucun événement annoncé à ce jour, le programme est mis à jour en fonction des annonces officielles.
Dates and Opening Time
From September 20, 2025 to September 21, 2025
Location
Boulogne-Billancourt Town Hall
26 Avenue André Morizet
92100 Boulogne Billancourt
Route planner
Accessibility info
Official website
www.boulognebillancourt.com
