Each year, the Heritage Days offer the perfect opportunity to explore venues that only reveal themselves on rare occasions. In the Val d’Oise, a host of cultural and historic sites are ready to welcome visitors over the weekend of September 19 and 20, 2026. Castles, churches and Museums will throw open their doors for guided tours, workshops, and exhibitions, providing a captivating immersion into the region’s history and traditions, rich with memory.
From Pontoise to Auvers-sur-Oise, you can rediscover architectural gems and monuments of great historical significance. This 2026 edition is set to astonish, offering the chance to explore lesser-known sites where the charm of a preserved, living heritage is palpable.
By the way, what are the Heritage Days? Every year, for over 40 years, art, culture, history, unusual sites and heritage sites all over Europe have been opening their doors to visitors, often free of charge! To bring this exceptional heritage to life, the inhabitants of participating countries are invited to take part in a variety of visits and events. A great weekend-long event not to be missed!
Heritage Days 2026: An immersion at the heart of the Bois des Arts and its sculpture garden
For Heritage Days 2026, Bois des Arts in Épiais-Rhus opens its sculpture park amid nature. A bucolic, offbeat escape to discover in the Val-d'Oise. [Read more]
Discover the Montmanoir estate, a hidden gem in the Val d'Oise during the 2026 Heritage Days.
Nestled in the heart of Val-d’Oise, in Montlignon, the Montmanoir estate reveals its leafy grounds and 19th‑century architecture for the 2026 Heritage Days. An Île-de-France escape off the beaten path. [Read more]
Heritage Days 2026 at the Val-d'Oise Departmental Archives: what’s on
The Val-d'Oise departmental archives will open their doors to children for Heritage Days, this Saturday 19 and Sunday 20 September 2026. Ready to discover the program that awaits you? [Read more]
Heritage Days 2026 at the Château‑Museum of the French Vexin: a historic foray into the heart of the Val-d’Oise (95)
Head to Théméricourt in Val-d'Oise to explore the Vexin Français Museum during Heritage Days 2026. Discover the secrets of the Renaissance château and the treasures of our Île-de-France terroir. [Read more]
Heritage Days 2026 at Montgeroult Castle: an exceptional opening on the agenda
Every autumn, Île-de-France reveals its best-kept historical secrets. For Heritage Days 2026, head to Val-d'Oise to swing open the gates of Montgeroult Castle, an architectural treasure that is exceptionally opening its doors to the public. [Read more]
Heritage Days 2026: outdoor tours at Isle-Adam Beach (95)
This Saturday, September 19, 2026, as part of Heritage Days, head to Isle-Adam Beach, a must-visit spot for athletes and outdoor enthusiasts. [Read more]
Stroll through the heart of a ghost village in the Paris region for the 2026 Heritage Days.
Why did this small town in Val-d'Oise end up deserted in the 1970s? Come explore Goussainville's Old Village and its unique heritage during Heritage Days 2026. [Read more]
Drones, parade and concert: the Departmental Firefighters Museum's program for the European Heritage Days 2026
The Departmental Firefighters Museum of Val d’Oise, located in Osny, is taking part in Heritage Days and invites children and adults for a deep dive into the world of firefighters on September 19 and 20, 2026. [Read more]
This stunning troglodyte church is worth discovering during the 2026 Heritage Days in the Paris region.
A church carved into a cliff in the Paris region? It’s one of Île-de-France’s most unusual treasures you’ll be able to discover during the 2026 Heritage Days, on September 19 and 20. [Read more]
Heritage Days 2026 at the Hermitage Bakery: gastronomic tours in Pontoise
Avis to bread lovers: the Hermitage bakery in Pontoise invites you to guided tours and crispy tastings for Heritage Days 2026, on September 19 and 20. [Read more]
Puzzle hunt and guided tours at the Pissaro Museum in Pontoise: the Heritage Days 2026 program
The Pissarro Museum participates in the new edition of Heritage Days. Housed on the site of a former medieval castle, the museum honors painter Camille Pissarro, who spent 17 years in Pontoise. On Saturday, September 19 and Sunday, September 20, 2026, discover the museum and its gardens, while enjoying a stunning view over the Val-d’Oise. A prime pick for this weekend of culture. [Read more]
Heritage Days 2026: visit the Cartoucherie Eco-Museum and its workers’ housing estate (95)
Heritage Days, held on 19 and 20 September 2026, will open the doors of the Cartoucherie Ecomuseum in Survilliers. It’s a great opportunity to discover its rich industrial and working-class heritage. [Read more]
Come discover the Pontoise aerodrome during Heritage Days 2026.
During the 2026 Heritage Days, come discover the Pontoise airfield and explore this captivating site at the heart of aviation in Île-de-France. Here is the schedule planned for the weekend of September 19–20, 2026. [Read more]
Schedule of tours for the 2026 Heritage Days at Maubuisson Abbey
For Heritage Days, Maubuisson Abbey will open its doors on Saturday, September 19, and Sunday, September 20, 2026. Stay tuned for more details! [Read more]
Visit the home of a renowned Impressionist painter in the Paris region during Heritage Days 2026.
What if we take advantage of Heritage Days 2026 to trace the steps of one of the greatest impressionist painters: Claude Monet. Here’s the program waiting for you at the heart of his Vétheuil residence for this weekend of September 19–20, 2026. [Read more]
A Merovingian-era immersion at the Val d'Oise Archaeological Museum for Heritage Days 2026
On the occasion of Heritage Days, the Val-d'Oise Archaeological Museum invites you to discover its program for the weekend of September 19 and 20, 2026. And what if we set off to explore the fascinating adventures of archaeological heritage? [Read more]
Heritage Days 2026: explore Daubigny's world in Auvers-sur-Oise
A house, a workshop and painted décors to discover on 19 and 20 September 2026 in Val-d’Oise for Heritage Days 2026! [Read more]
Journées du Patrimoine 2026 : This unconventional house in Auvers-sur-Oise keeps the legacy of the great 19th-century painters alive.
Former studio of Charles-François Daubigny, now a hub for contemporary creation, Maison Rose in Wallerand participates in the 2026 Journées du Patrimoine on September 19 and 20. Here’s the program! [Read more]
European Heritage Days 2026: discover Doctor Gachet's house, a landmark of Impressionism.
In the heart of Auvers-sur-Oise, Doctor Gachet’s house tells the story of a physician passionate about art who became one of the closest confidants of several major 19th-century painters. [Read more]
Heritage Days 2026: In the Footsteps of the 'Green Fairy' in Auvers-sur-Oise
The Absinthe Museum recounts the history of this iconic drink that shaped the Parisian café scene and inspired a generation of 19th-century artists. [Read more]
Heritage Days 2026: step inside Auberge Ravoux, where Van Gogh spent his final days
In Auvers-sur-Oise, the Ravoux Inn opens its doors on September 19 and 20, 2026. It’s here that Vincent van Gogh spent the final months of his life and created some of his most famous works. [Read more]
Journées du Patrimoine 2026 : discover the Château de Vigny, a monument rescued from ruin
On September 19 and 20, 2026, the Château de Vigny opens its doors to the public. A visit to discover a Renaissance-era landmark in the Val-d'Oise, at the heart of an impressive restoration project. [Read more]
Heritage Days 2026 at the Jean-Jacques Rousseau Museum in Montmorency (Val-d'Oise): workshops and exhibitions on the program
For Heritage Days, the Jean-Jacques Rousseau Museum in Montmorency, Val-d'Oise (95), invites you to a special weekend program for September 19 and 20, 2026. More details to come! [Read more]
Heritage Days 2026: the program of Claude Monet's Impressionist House in Argenteuil (95)
As part of the 2026 Heritage Days, Claude Monet’s Impressionist House welcomes you to Argenteuil on 19 and 20 September 2026. [Read more]
Heritage Days 2026: this weekend’s lineup at Archéa, the archaeological museum in Louvres (95)
For Heritage Days, Archéa, the archaeology museum in Pays de France, based in Louvres in Val-d'Oise (95), invites you to special tours on Saturday, September 19 and Sunday, September 20, 2026. Here’s the program for the 43rd edition! [Read more]
Heritage Days 2025: visit the Orville archaeological site in Louvres (95)
On the weekend of September 20 and 21, 2025, many cultural and historical sites will be opening their doors for the European Heritage Days. In Louvres (95), the Orville archaeological site opens its doors to the public for the occasion. [Read more]
Exclusive tours and a never-before-seen exhibition at the Château d'Écouen for the 2026 Heritage Days.
The Château d'Écouen and its Renaissance museum are taking part in Heritage Days on Saturday, 19 and Sunday, 20 September 2026. Take advantage of free guided tours for visitors of all ages. [Read more]
A festive Sunday at Fort de Cormeilles-en-Parisis for Heritage Days 2026
Visit Fort de Cormeilles during the 43rd edition of Heritage Days, on Sunday, September 20, 2026. This former military fortress, now owned by the Île-de-France Regional Green Spaces Agency, opens its doors to families and history enthusiasts, free of charge, of course! Here’s the program. [Read more]
Heritage Days 2026: Discover the secrets of the Villarceaux estate (95)
Are you heading to the Parc naturel régional du Vexin français for the weekend of September 19–20, 2026? Take advantage of Heritage Days to visit the Villarceaux estate in Chaussy. [Read more]
Heritage Days 2026: the Beaumont Palace cinema, a listed historic monument, opens its doors
On the occasion of Heritage Days, this Saturday, September 19 and Sunday, September 20, 2026, the Val-d'Oise’s best-known cinema reveals a different side. Find out what's on this weekend. [Read more]
Heritage Days 2026: guided tours of the stunning Château de la Roche-Guyon (95)
What if we took advantage of Heritage Days, on Saturday 19 and Sunday 20 September 2026, to visit an astonishing troglodyte landmark in Île-de-France: the Château de la Roche-Guyon, located in Val-d'Oise. [Read more]
Hidden beneath a Pontoise convent, a crypt centuries old will be unveiled in September.
On the occasion of the 2026 Heritage Days, set off to discover the crypt of the English Benedictine convent, a discreet place that tells a chapter of Pontoise's history. [Read more]
European Heritage Days 2026: An exceptional guided tour at the Naval Museum of Sarcelles (Val-d'Oise)
The weekend of September 19–20, 2026, discover French maritime history for free at the Naval Museum of Sarcelles, through guided tours and activities for all. [Read more]
Discover Beaumont-sur-Oise Castle during Heritage Days 2026
Beaumont-sur-Oise Castle takes center stage in this year’s edition of Heritage Days. A medieval relic, the castle’s keep looms over the banks of the Oise and offers a stunning view of Saint-Laurent Church, to be explored on September 19 and 20, 2026. [Read more]
Heritage Days 2026: a tour through Van Gogh’s world at the Château d’Auvers-sur-Oise (95)
The Château d'Auvers-sur-Oise is inviting you to the weekend of September 19–20, 2026, for the new edition of Heritage Days. Discover the program lined up for you this year and book your tickets. [Read more]
Heritage Days 2026: Exceptional tours of Royaumont Abbey in Val d'Oise
For Heritage Days 2026, on September 19 and 20, the Royaumont estate opens its doors for guided tours of the Abbey and its gardens. Reservations are mandatory. [Read more]
Heritage Days 2026: Explore Vétheuil and the Treasures of the French Vexin
Explore the village of Vétheuil and uncover its historical and artistic gems as part of the new edition of Heritage Days, on September 19 and 20, 2026. [Read more]
Heritage Days 2026: this weekend’s program in Taverny, Val-d'Oise
Join us to discover the town of Taverny and its historical treasures on September 19–20, 2026, as part of Heritage Days 2026. Here are the events on the program. [Read more]
Heritage Days 2026: a stroll in the footsteps of the Impressionists in Auvers-sur-Oise (95)
This year’s edition of Heritage Days invites you to immerse yourself in the heart of Auvers-sur-Oise, Van Gogh’s beloved village. Discover its rich artistic and historical heritage and let yourself be captivated by its hidden wonders on September 19 and 20, 2026. [Read more]
Heritage Days 2026 in Pontoise (95): all the visits you shouldn’t miss
During Heritage Days 2026, Pontoise reveals its rich artistic and medieval heritage over the weekend of September 19–20. Discover the treasures of this city of painters and join in unique cultural activities! [Read more]
Heritage Days 2026: the schedule of tours and activities in Argenteuil (95)
Discover the new edition of the Journées du Patrimoine in Argenteuil this Saturday, September 19 and Sunday, September 20, 2026! Explore the city’s cultural wealth, its iconic landmarks, and its fascinating history during this unique weekend. A chance to dive into the heritage of one of the Val d’Oise department’s largest cities! [Read more]
Uncover the secrets of this unfinished castle for Heritage Days 2026.
In Val-d'Oise, the Château d'Arnouville opens its doors for this year's edition of the European Heritage Days 2026. Here's what to expect on September 19 and 20, 2026. [Read more]
Heritage Days 2026: the visit program in Beaumont-sur-Oise (Val-d'Oise, 95)
Discover Beaumont-sur-Oise during the 2026 Heritage Days! On September 19 and 20, set off on a memorable journey through history and architecture of exceptional quality. Let yourself be drawn to its hidden gems and the promising lineup of events to discover in September. [Read more]
Heritage Days 2026: Discover Val d'Oise's stunning castles (95)
For Heritage Days, head to Val d'Oise to explore its castles. These castles are unveiling a special program for this weekend of September 19–20, 2026. [Read more]
These activities will make you appreciate the department and its heritage even more. We wish you a wonderful Heritage Days 2026 in Val d'Oise!
Dates and Opening Time
From September 19, 2026 to September 20, 2026
Prices
Free
