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 in Île-de-France: discover Arnaud Kasper's sculpted universe at Bois des Arts
On September 19 and 20, 2026, discover the monumental works of sculptor Arnaud Kasper at Bois des Arts, a verdant cultural stop 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: a spotlight on the Musée du Vexin Français, nestled in the heart of the Château de Théméricourt (Val-d'Oise, 95)
Set off to explore the Domaine de Théméricourt and its interactive museum for the 2026 Heritage Days. A great family outing in the Val-d'Oise. [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, a parade and a concert at the Departmental Firefighters Museum: Heritage Days 2026 program
The Departmental Firefighters Museum of Val d'Oise, based in Osny, is taking part in the latest edition of Heritage Days, inviting children and adults alike to discover the firefighting profession on 19 and 20 September 2026. [Read more]
This rock-cut church will be open to visitors for Heritage Days 2026.
European Heritage Days throw open the doors to Paris and Île-de-France’s hidden gems on 19 and 20 September 2026. In Val-d’Oise (95), set your sights on Haute-Isle for a mineral immersion inside the region’s only troglodyte church, carved straight into the cliff face. [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]
Heritage Days 2026: a historical reenactment at the Val-d'Oise Archaeological Museum (95)
As part of the 43rd Heritage Days, the Archaeological Museum of Val-d'Oise invites you to explore its program for the weekend of September 19–20, 2026. And what if we plunge into the fascinating world 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: Château de Vigny, a little-known gem in Val-d'Oise to discover
Longclosed to the public for years, the Château de Vigny opens to visitors on September 19 and 20, 2026. A chance to learn more about this historic monument undergoing restoration on the doorstep of Île-de-France. [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]
Journées du Patrimoine 2026 : Visit Claude Monet's Impressionist House in Argenteuil
On the occasion of the 2026 European Heritage Days, Claude Monet's Impressionist House welcomes you to Argenteuil on 19 and 20 September 2026. Discover the weekend program. [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: Villarceaux estate lifts the veil on its secrets this weekend
Are you near the Parc naturel régional du Vexin français on September 19 and 20, 2026? Take advantage of the Journées du Patrimoine to visit the Villarceaux estate in Chaussy. Here is the lineup of activities. [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]
Heritage Days 2026: Weekend program at the Naval Museum of Sarcelles (Val-d’Oise)
On September 19 and 20, 2026, take part in free activities at the Naval Museum of Sarcelles to explore France’s maritime history. [Read more]
Heritage Days 2026: Weekend tours of Beaumont-sur-Oise Castle (95)
Beaumont-sur-Oise Castle unfolds during these Heritage Days. A medieval relic, the castle’s keep dominates the banks of the Oise and offers a splendid view of Saint-Laurent Church, to be explored on 19 and 20 September 2026. Discover the program! [Read more]
Heritage Days 2026 at Château d'Auvers-sur-Oise (Val-d'Oise): free admission to the Van Gogh exhibition
Le Château d'Auvers-sur-Oise welcomes visitors this weekend, September 19–20, 2026, for the 43rd edition of the European Heritage Days. Discover the program waiting for you there this year. [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]
Van Gogh is calling you! Discover Auvers-sur-Oise like never before for the 2026 European Heritage Days.
During Heritage Days 2026, dive into the heart of Auvers-sur-Oise, Van Gogh’s beloved village. Here’s the lineup for this weekend, September 19–20, 2026. [Read more]
Heritage Days 2026 in Pontoise (95): your guide to this weekend’s tours
During the latest edition of Heritage Days, Pontoise unveils its rich artistic and medieval heritage on September 19–20, 2026. Discover the treasures of this city of painters through a series of memorable tours! [Read more]
Heritage Days 2026: what to do in Argenteuil (95)? The weekend program
Discover Argenteuil's Heritage Days this Saturday, September 19 and Sunday, September 20, 2026! Explore the city's cultural richness, its iconic monuments, and its fascinating history during this unique weekend. [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 in Beaumont-sur-Oise (95): the gems to discover this weekend
Discover Beaumont-sur-Oise during the new edition of Heritage Days! On 19 and 20 September 2026, embark on a memorable journey through history and extraordinary architecture. [Read more]
Heritage Days 2026: Discover Val d'Oise's castles (95) this weekend
Take advantage of Heritage Days to stroll through the Val d'Oise, on the hunt for the castles that are unveiling a special program 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
