For this new edition of the Heritage Days 2026, which spotlights the theme of endangered heritage and the heritage of photography, there are plenty of good tips. From Versailles to Dampierre, iconic and little-known venues will open their doors on Saturday, September 19 and Sunday, September 20, 2026.
This Île-de-France department is home to some of France's most famous monuments, including the must-see residence of the Sun King, the château de Versailles (link for details). But this palace isn’t the only treasure to discover in the Yvelines: the region also offers several other castles and estates, quirky museums museums, performance venues, enchanting gardens, and family-friendly sites... So it’s virtually impossible to get bored in the Yvelines during these Journées du Patrimoine!
This year we celebrate the 43rd edition of the Heritage Days. Haven’t you heard of this event staged in more than 50 European countries? The Heritage Days are exceptional open-house events that let us explore for free the region’s museums, castles, theaters and venues for the performing arts, as well as historic institutions, notable companies and nearby religious monuments. It’s a cultural fixture that takes place on the third weekend of September, always delivering a few pleasant surprises!
On the program, we find then guided tours, workshops and other activities that whisk us into the enchanting universe of this expansive Île-de-France department, to meet the gems of our globally unique heritage.
Heritage Days 2026 at the Château de Saint-Germain-en-Laye - National Archaeology Museum (78)
The Château de Saint-Germain-en-Laye is taking part in the 2026 Heritage Days. On the schedule for Saturday the 19th and Sunday the 20th of September are guided tours of the château and the National Archaeology Museum, along with many other surprises, offering a unique immersion into the heart of History. [Read more]
Heritage Days 2026: Free guided tours of the King's Kitchen Garden in Versailles (78)
For the 2026 Heritage Days, we’re heading to the Potager du Roi at the Château de Versailles to enjoy two free days in an enchanting setting, on September 19 and 20. On the program: guided tours and activities for kids and adults alike! [Read more]
Heritage Days 2026: explore the Ors Estate Nature Reserve and its ruins.
In Châteaufort, in the Yvelines, Domaine d’Ors blends historic heritage with preserved nature along the Mérantaise. The 2026 Heritage Days offer a chance to discover the estate’s history and the remains of a property shaped by centuries of transformation. [Read more]
Set out to conquer the Moulin d'Ors for Heritage Days 2026
For the 2026 Heritage Days, the spotlight is on Moulin d’Ors in Châteaufort, in Yvelines. A former wheat mill in the Chevreuse valley, it alone bears witness to centuries of local history and hydraulic heritage. [Read more]
Heritage Days 2026 at the Rambolitrain Museum: a visit and a train ride
Have you heard of Rambolitrain? This quirky miniature train museum opens its doors to you on September 19 and 20, 2026, for Heritage Days. With family or friends, come explore this playful venue and its fascinating collections for free. [Read more]
Heritage Days 2026: Exploring the Château de Rambouillet (78)
In September, Heritage Days are back: discover the program lined up at the Château de Rambouillet (78) on September 19 and 20, 2026. [Read more]
Escape game and tour of the Château de Plaisir for the 2026 Heritage Days in the Yvelines
And what if, for Heritage Days 2026, we set out to discover the castles of Île-de-France? In Yvelines, Château de Plaisir enters the fray! Discover the program scheduled for this weekend, September 19–20, 2026. [Read more]
At the Château de la Verrière, exceptional tours for Heritage Days 2026
On the occasion of Heritage Days 2026, the Château de La Verrière in Yvelines reveals a heritage shaped since the 16th century, blending a lordly residence, historic gardens and astonishing interior décor. [Read more]
Heritage Days 2026 at the Toy Museum (78): playful, family-friendly tours.
Relive your childhood on September 19–20, 2026, with the family program crafted by the Toy Museum, for the 42nd edition of Heritage Days. [Read more]
Heritage Days 2026: free tours and concerts at the Léon Blum House
On September 19 and 20, 2026, Heritage Days return across Île-de-France. Each year, this event lets visitors discover for free emblematic—sometimes little-known—sites that tell the story of the region. In Jouy-en-Josas, in the Yvelines, Maison Léon Blum is among the sites that open their doors to share their heritage with the public. [Read more]
Heritage Days 2026: guided tours of the Skit of the Holy Spirit (78)
The Holy Spirit Skete, an Orthodox monastery tucked away in the forest of Mesnil-Saint-Denis, opens its doors for Heritage Days 2026 on September 19. A rare opportunity not to be missed to admire its frescoes and its distinctive architecture. [Read more]
Heritage Days 2026 in Versailles (78): guided tours of the Montansier Theatre
As part of the 43rd edition of Heritage Days, the Montansier Theatre, an 18th‑century treasure in Versailles, welcomes visitors with guided tours on the weekend of September 19–20, 2026. [Read more]
Heritage Days 2026 at the Maison des Italiens in Versailles: a little-known monument in the Yvelines (78)
Want to uncover the secrets of France’s heritage without spending a dime? On September 19 and 20, 2026, the European Heritage Days will throw open the doors to the country’s most unusual and iconic sites. This year, in Yvelines (78), treat yourself to the Maison des Italiens in Versailles, an elegant private mansion listed as a Historic Monument. [Read more]
Explore Bazemont's lordly fief during Heritage Days 2026 in the Paris region.
Once a lordly estate, now a town hall, Bazemont Castle opens its doors on September 19 and 20, 2026 for Heritage Days. [Read more]
Heritage Days 2026: explore Wood Cottage, a house with witch-like charm, in Le Vésinet.
On the occasion of the 2026 Heritage Days, marvel at a true architectural gem in the town of Le Vésinet: Wood Cottage, a curious house that looks like it’s stepped straight out of a fantasy film. Here’s the program! [Read more]
Heritage Days 2026 at Villa Beau-Chêne, known as Joséphine Baker’s Villa, in Le Vésinet (78)
On the occasion of Heritage Days 2026, head to Le Vésinet (78) to discover the sumptuous Villa Beau-Chêne, or Joséphine Baker’s Villa, on Saturday, September 19. A rare opportunity to dive into the intimate world of the music-hall icon, close to her memories. [Read more]
Heritage Days 2026: aircraft exhibition and flight simulator at Chavenay Airfield (78)
Nestled in the heart of the Versailles plain, the Chavenay-Villepreux Aerodrome opens its doors for Heritage Days 2026. From displays of legendary aircraft to hands-on explorations of aviation careers, join us for an immersive and thrilling dive into the world of aeronautics. [Read more]
Heritage Days 2026 at the Datcha — Ivan Turgenev Museum, the writer’s retreat in Yvelines (78)
The European Heritage Days 2026 are your VIP pass to the behind-the-scenes of history, coming up on September 19 and 20. In Yvelines (78), we head to the Datcha – the Ivan Tourguéniev Museum, a charming Swiss-Russian-style chalet that once belonged to the writer, tucked away in the Bougival woods. [Read more]
Heritage Days 2026: discover the Ballonnière Museum and the jamboree in Moisson (78)
Discover the quirky Ballonnière Museum and the 1947 jamboree, in the town of Moisson in the Yvelines, for Heritage Days, held on September 19–20, 2026. [Read more]
Heritage Days 2026: guided tour and vintage cars at Château de Maisons-Laffitte (78)
On the occasion of the 2026 Heritage Days, come and discover the magnificent Château de Maisons-Laffitte, built for King Louis XIV, on Saturday, 19 and Sunday, 20 September 2026, in Yvelines. A wonderful opportunity to explore this gem of Île-de-France heritage! [Read more]
Heritage Days 2026: discover Poissy's Iron House with an immersive game (78)
What’s on for the 2026 Heritage Days in Yvelines? Over in Poissy, it’s a chance to go (re)discover the Iron House on Saturday, September 19, 2026! [Read more]
Heritage Days 2026: explore Villa Savoye in virtual reality (78)
La Villa Savoye opens its doors free of charge on September 19 and 20, 2026, to mark the new edition of Heritage Days, with virtual reality tours on the agenda. [Read more]
Heritage Days 2026 at the Palace of the King of Rome: exhibition and tours in Rambouillet (78)
In Rambouillet, a wealth of cultural outings awaits us for Heritage Days. The Palace of the King of Rome and its garden will open their doors free of charge this weekend of September 19–20, 2026. [Read more]
Heritage Days 2026: guided tour of the Elsa Triolet–Aragon House in Yvelines
In the heart of the Yvelines, the Elsa Triolet–Aragon house stands as a testament to the love shared by the two writers, and you’ll be able to visit it free of charge on September 19 and 20, 2026, for Heritage Days. [Read more]
Heritage Days 2026 at Parc aux Étoiles (78): astronomy and space exploration
Ready to embark on a cultural journey that rockets straight to the stars? On September 19 and 20, 2026, the European Heritage Days fling open the doors to unusual places, and the Parc aux Étoiles in Triel-sur-Seine (78) shines on the program with its captivating immersion in astronomy and space exploration! [Read more]
Heritage Days 2026: visit the André Derain House, the workshop of a Fauvist master (78)
Let your eyes wander and your footsteps stray for Heritage Days on Sunday, September 20, 2026. In Chambourcy, in the Yvelines (75), the André Derain House-Museum reveals the Fauvist master's studio and other flamboyant keepsakes from the 20th century. [Read more]
Heritage Days 2026: offbeat and free activities at the Désert de Retz (78)
For the 2026 Heritage Days, a one-of-a-kind experience awaits you at the Désert de Retz in Chambourcy, Yvelines, this Sunday, September 20, 2025. A picturesque, romantically framed journey into a site steeped in history and architectural wonders. [Read more]
Heritage Days 2026: creative workshops and guided tours at the Musée de la Toile de Jouy in Yvelines (78)
In honor of the 2026 Heritage Days, on September 19 and 20, the Musée de la Toile de Jouy opens its doors to curious visitors with a lineup of free activities, in the Yvelines. [Read more]
Heritage Days 2026 at the Versailles City Hall (78): free tours of the landmark.
The Heritage Days 2026 invite you to see Versailles in a new light. On Sunday, September 20, 2026, uncover the secrets of the royal city with an exclusive tour of the Hôtel de Ville, a historic monument and former estate of one of Louis XIV's daughters. [Read more]
Heritage Days 2026 at the Grand Stables of Versailles (78): free, self-guided visits
The Versailles Equestrian Academy and the Versailles Campuses open the doors to the Grand Stable of the Palace of Versailles for Heritage Days, on the weekend of September 19–20, 2026. Head here to see the program! [Read more]
Heritage Days 2026 at Château de Breteuil (Yvelines, 78), at the heart of Perrault’s fairy tales
Le Château de Breteuil, the place that draws us into the heart of Perrault's tales, will take part in Heritage Days on the weekend of September 19–20, 2026. Here’s the programme, but note: admission remains payable! [Read more]
Heritage Days 2026: discover Jean Monnet's house in Bazoches-sur-Guyonne (78)
Trace the steps of one of the founders of the European Union for Heritage Days 2026. In the heart of the Yvelines, the Maison Jean Monnet awaits you for the weekend of 19 and 20 September 2026. [Read more]
Heritage Days 2026: Immerse yourself in Dumas's universe at the Château de Monte-Cristo (78)
The Château de Monte-Cristo, Alexandre Dumas’s home, will take part in the European Heritage Days on 19 and 20 September 2026. To mark the occasion, admission to the château will be discounted. [Read more]
Heritage Days 2026: discover the Canal Boatmen Museum in Conflans-Sainte-Honorine (78)
They're back: this weekend, Saturday, September 19 and Sunday, September 20, 2026, the Heritage Days kick off a new edition in Paris and Île-de-France. Over in Conflans (78), head to the Museum of River Barging and Inland Waterways! [Read more]
Treasure hunt and creative workshop at the CNC’s Heritage Directorate for Heritage Days 2026
On the occasion of the upcoming Heritage Days edition, taking place on 19 and 20 September 2026, the CNC’s Directorate of Cinematic Heritage invites you to discover its efforts to safeguard film heritage. [Read more]
In Carrières-sous-Poissy, the Galiotte huts open to the public for the 2026 Heritage Days.
As part of the 2026 Heritage Days, set out to discover the floating cabins of the Galiotte, their history, and their distinctive architecture. [Read more]
A remarkable visit to the Château de la Celle-Saint-Cloud for Heritage Days 2026
In the heart of the Yvelines, the Château de la Celle-Saint-Cloud, owned by the Ministry of Europe and Foreign Affairs, is exceptionally opening its doors for Heritage Days 2026 on the weekend of September 19–20: here’s the programme! [Read more]
Heritage Days 2026: Discover the stunning Château de Neuville (78) during guided tours
During the 2026 Heritage Days, the Château de Neuville, located in Gambais in the Yvelines (78), opens its doors for exceptional guided tours on Sunday, September 20. If you’re after a cultural escape, this is the perfect plan you’ve been waiting for! Ready to discover this treasure of Yvelines heritage? [Read more]
Heritage Days 2026 in Rambouillet (78): historic monuments to discover
On the occasion of Heritage Days 2026, the town of Rambouillet in the Yvelines invites you to step inside for a weekend of discoveries and guided tours at the heart of its Historic Monuments, on 19 and 20 September. [Read more]
Heritage Days 2026 in Houilles (78): this weekend's tour program
Heritage Days are the weekend of September 19 and 20, 2026! To get off the beaten track, head to Houilles in the Yvelines department to dive into the heart of the town’s history. From Saint-Nicolas Church to the charm of the former stone quarries, discover the patrimonial treasures of this Yvelines commune! [Read more]
Heritage Days 2026: What's on in Saint-Rémy-les-Chevreuse in Yvelines
In the heart of the Chevreuse Valley, an exciting town invites you to uncover its secrets and the illustrious figures who have walked its streets. For Heritage Days 2026, what if we explored Saint-Rémy-les-Chevreuse? [Read more]
Heritage Days 2026 in Mantes-la-Jolie (78): the city’s visit schedule.
Embark on a historical adventure in Mantes-la-Jolie during Heritage Days! On September 19 and 20, 2026, discover a rich heritage and let the bygone stories of this jewel of the Yvelines resonate around you. [Read more]
Heritage Days 2026 in Saint-Germain-en-Laye (78), a royal town that has inspired artists
Heritage Days are back on September 19 and 20, 2026, in Paris and the Île-de-France region for more cultural adventures! In Yvelines, Saint-Germain-en-Laye sticks to the tradition and has devised a “royal” program to discover during this exceptional weekend. Mark your calendars... note! [Read more]
Heritage Days 2026 in Conflans-Sainte-Honorine (78): the program
Conflans-Sainte-Honorine is the picturesque hub of the 2026 Heritage Days! Discover the lineup of tours and activities that will shape the weekend of September 19–20, 2026, in the charming town of the Yvelines. [Read more]
Heritage Days 2026: hidden historic gems tucked away in lush greenery in Le Vésinet (78)
During the Heritage Days on September 19–20, 2026, stop by Le Vésinet, a true green oasis just outside Paris. Start planning now with the schedule of activities and tours in the charming commune of the Yvelines! [Read more]
Journées du Patrimoine 2026 : discover the park at Château de Bourdonné in Yvelines
Private property closed to the public, the Château de Bourdonné will exceptionally open its verdant park for Heritage Days 2026. A rare opportunity to glimpse the exterior of this elegant Louis XIII–style residence nestled in the heart of the Yvelines. [Read more]
Heritage Days 2026: discover Houdan’s medieval town and its keep (78)
In the heart of the Yvelines, a picturesque medieval town hides numerous remnants of the Middle Ages, from its keep and its fortifications to its old inns. For Heritage Days, on September 19 and 20, 2026, come discover them in Houdan! [Read more]
Heritage Days 2026: explore Chevreuse through its finest monuments (78)
Take part in the 2026 Heritage Days to discover the charming town of Chevreuse in the Yvelines. Meet us on September 19 and 20 to explore the city’s finest monuments! [Read more]
Heritage Days 2026 in Beynes (78): castle tour and historical reenactment
In the heart of the Yvelines, a small town hides a handful of medieval gems you won’t want to miss during the 2026 Heritage Days. Here’s the Beynes visit program, spanning the castle, the church, and the moats that hold some surprises! [Read more]
European Heritage Days 2025 in Versailles (78): the schedule of activities and places to visit
Les Journées du Patrimoine are back on September 19 and 20, 2026, inviting us to discover the riches of our heritage. We head to Versailles, in Yvelines, to make the most of this edition’s highlights with tours of the Palace of Versailles, as well as other institutions on an exceptional lineup. [Read more]
Heritage Days 2026 at the Yvelines' castles, the program for the 78.
And what if Heritage Days 2026 were the moment to go on a quest for the Île-de-France castles? This time, we set course for the Yvelines to uncover the magnificent residences that will open their doors this weekend, September 19–20, 2026. [Read more]
The Yvelines region is teeming with sights, monuments and activities you won’t want to miss. So take advantage of this beautiful weekend to discover them all, with family or with friends!
Dates and Opening Time
From September 19, 2026 to September 20, 2026
Recommended age
For all
