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: Explore the Grand Cellar of the Priory of Conflans-Sainte-Honorine
Every autumn in Île-de-France, the Heritage Days fling open doors usually shut to the public: on September 19–20, 2026, dive into the region’s medieval history by stepping through the Grand Cellar of the Priory in Conflans-Sainte-Honorine. [Read more]
Heritage Days 2026: go behind the scenes at the Chatou dam in Yvelines
For Heritage Days 2026, set out to explore the Chatou Dam in Yvelines. Discover how this little-known river structure operates on the Île des Impressionnistes. [Read more]
Explore Montgomery's tomb, a forgotten treasure, for Heritage Days 2026.
For the 2026 Heritage Days, head to Chevreuse in the Yvelines department to discover the fascinating mausoleum of Count Henri Georges de Pembroke and Montgomery, a little-known treasure of Île-de-France. [Read more]
Journées du Patrimoine 2026: exceptional opening of PSG campus in Poissy (78)
On the occasion of Heritage Days, Paris Saint-Germain will open its Poissy campus to the public for the first time on 19 and 20 September 2026. This year, tours are limited to residents of nearby towns. [Read more]
Heritage Days 2026: Discovering the Château de la Madeleine (78)
On the occasion of the 2026 Heritage Days, held on 19 and 20 September 2026, the château de la Madeleine in the Yvelines is offering special, free tours for everyone. [Read more]
Heritage Days 2026: balcony concert at the Maurice Ravel House-Museum (78)
Head to Yvelines for Heritage Days, a department brimming with treasures to discover! On Sunday, September 20, 2026, the Maurice Ravel House-Museum invites you into the composer’s musical world. [Read more]
Heritage Days 2026 at France Miniature (Yvelines): step behind the scenes at the park.
Heritage Days come to France Miniature in Elancourt (78) on 19 and 20 September 2026. For an exceptional weekend, set off on a XXS tour of France among the country’s iconic monuments. [Read more]
The Dacha Program at the Ivan Turgenev Museum for Heritage Days 2026
The Datcha, Ivan Turgenev Museum, invites us to the 2026 Heritage Days on September 19 and 20, 2026. Here’s the program! [Read more]
For Heritage Days 2026, discover the Domaine de Dampierre
For Heritage Days 2026, the Domaine de Dampierre-en-Yvelines (78) invites you to discover its program. On September 19 and 20, it will put its remarkable heritage in the spotlight. [Read more]
Heritage Days 2026 at Saint-Germain-en-Laye Town Hall (78)
Looking for a picturesque escape without leaving France? The European Heritage Days return on September 19–20, 2026, with a lineup of secret sites you can explore for free. Among them: the Town Hall of Saint-Germain-en-Laye, a historic edifice nestled in the heart of the royal town in the Yvelines (78). [Read more]
European Heritage Days 2026 at the Hôtel de Noailles in Saint-Germain-en-Laye (78): the program
Prêt.e.s à dénicher un trésor caché ? On September 19 and 20, 2026, the European Heritage Days invite you to step behind the doors of a little-known gem: the Hôtel de Noailles in Saint-Germain-en-Laye (Yvelines 78). An invitation to explore history, art, and architecture off the beaten track! [Read more]
Heritage Days 2026: explore the Agutte-Sembat House, the residence of Marcel Sembat and Georgette Agutte
For Heritage Days 2026, explore the Agutte-Sembat House in Bonnières-sur-Seine (78). Discover the captivating world of deputy Marcel Sembat and painter Georgette Agutte through a unique visit in Île-de-France. [Read more]
Heritage Days 2026 at the Berthe Morisot House: discover the Impressionist artist
The Berthe Morisot House in Bougival opens its doors to curious visitors on 19 and 20 September 2026, for the new edition of Heritage Days. [Read more]
Heritage Days 2026: Explore the Ferme d'Ithe and its enigmatic Gallo-Roman remains in Yvelines (78)
Tread in the footsteps of the Gallo-Romans on September 19 and 20, 2026, with a guided tour of Ferme d'Ithe, a well-preserved historic site in the heart of the Île-de-France countryside. [Read more]
Heritage Days 2026: explore the King's Small Stable and its Sculpture Gallery
Housed in the King’s Little Stable at Versailles, the Gallery of Sculptures and Casts sits hidden away. This little-known, unusual museum awaits you on September 19, 2026, for Heritage Days. [Read more]
Heritage Days 2026: set off to discover the Château de Jambville, the Scouts of France’s HQ
Embark on a discovery of the Château de Jambville in Yvelines for the 2026 Heritage Days. History, nature, and architectural curiosities await you in the heart of the Vexin. [Read more]
Explore the ruins of Port-Royal-des-Champs Abbey during the 2026 Heritage Days.
Step inside the Port-Royal des Champs Abbey in Magny-les-Hameaux for Heritage Days 2026. From hidden ruins and historic gardens to free strolls through the Yvelines, discover a landmark of Île-de-France's history on September 19 and 20, 2026. [Read more]
This vineyard in the heart of the Yvelines opens its doors for the 2026 Heritage Days.
Ready to raise a glass to heritage? European Heritage Days 2026 offer a weekend that’s as cultural as it is wine-focused, on September 19 and 20. Set your sights on the Yvelines, at Domaine de La Bouche du Roi, for a getaway among rows of vines, historical tales, and sips to savour! [Read more]
Heritage Days 2026 at the Notre-Dame-de-la-Roche Abbey in the heart of the Yvelines: the program.
Immerse yourself in the medieval treasures of the Abbey of Notre-Dame-de-la-Roche in Lévis-Saint-Nom for Heritage Days 2026. Discover a preserved jewel from the Yvelines in the heart of the Chevreuse Valley. [Read more]
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: a vanished estate still leaves its mark in Châteaufort
In Châteaufort, the Domaine d’Ors preserves the traces of a former estate now ringed by protected natural spaces. A story to rediscover in the heart of the Chevreuse Valley on Saturday, September 19, 2026. [Read more]
This hidden mill in Yvelines unveils itself for the 2026 Heritage Days
Off to Châteaufort to discover Moulin d’Ors, a 19th-century wheat mill and a striking witness to the history of the Chevreuse valley. [Read more]
Heritage Days 2026 at Rambolitrain Museum: a visit and a family train ride
Do you know Rambolitrain? This quirky miniature-train museum is opening its doors on the weekend of September 19–20, 2026, for Heritage Days. Bring family or friends and discover this playful venue and its fascinating collections, free of charge. [Read more]
Heritage Days 2026: what’s on at the Château de Rambouillet (78)
In September, Heritage Days make their grand comeback: discover the program planned at Château de Rambouillet (78) for September 19 and 20, 2026. [Read more]
Escape game and a tour of the Château de Plaisir for the 2026 Heritage Days
What if, for the 2026 Heritage Days, we set off to conquer the castles of Île-de-France? In Yvelines, the Château de Plaisir is joining the celebration! Discover the schedule 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 discoveries for families
Relive your childhood on September 19 and 20, 2026, with a family program crafted by the Toy Museum, for the 43rd edition of Heritage Days. [Read more]
Heritage Days 2026: Léon Blum House to open its doors free of charge in Yvelines
On 19 and 20 September 2026, the Maison Léon Blum in Jouy-en-Josas will open its doors free of charge for Heritage Days, offering tours and concerts. [Read more]
This unusual monastery hidden in the heart of a forest invites you to the 2026 Heritage Days.
The Holy Spirit Skete, an Orthodox monastery tucked in the heart of the Mesnil-Saint-Denis forest, will open to the public during Heritage Days 2026 on September 19. A rare opportunity not to be missed to admire its frescoes and distinctive architecture. [Read more]
Heritage Days 2026 in Versailles (78): guided tours of the Montansier Theatre
To mark the 43rd edition of Heritage Days, the Montansier Theatre, an 18th‑century jewel in Versailles, invites you to guided tours over the weekend of September 19–20, 2026. [Read more]
The House of the Italians, Versailles’ little-known monument, opens for Heritage Days 2026!
Want to discover the secrets of heritage without spending a single euro? On 19 and 20 September 2026, the European Heritage Days will open doors to places that are both quirky and iconic across France. This year, in the Yvelines (78), the event offers a chance to visit the Maison des Italiens in Versailles, an elegant hôtel particulier that is listed as a historic monument. [Read more]
This picturesque manorial estate is open to visitors for Heritage Days 2026 in the Paris region.
In Bazemont, in the Yvelines, a former Renaissance château and its outbuildings are open to the public for the 2026 Heritage Days. [Read more]
This remarkable cottage, with its witch’s-house vibe, is open for tours during Heritage Days 2026.
On the occasion of the 2026 European Heritage Days, discover Wood Cottage, a true architectural gem of Le Vésinet, an uncanny residence that evokes the universe of a fantasy film. The program is here. [Read more]
Discover Joséphine Baker’s villa during Heritage Days 2026!
European Heritage Days mark their 43rd edition this year, and for music-hall fans it's the perfect moment! You’ll be able to step through the doors of the villa of an iconic figure: Joséphine Baker! See you on the weekend of September 19 and 20, 2026. [Read more]
Une exposition d’avions et un simulateur de vol pour les Journées du Patrimoine 2026 en région parisienne
An aircraft exhibition and a flight simulator for Heritage Days 2026 in the Paris region
Situated in the heart of the Versailles Plain, the Chavenay-Villepreux airfield opens its doors for Heritage Days 2026. From demonstrations of iconic aircraft to activities exploring aviation trades, experience an exciting immersion in the world of aeronautics. [Read more]
The Ballonnière Museum and its jamboree reveal themselves during Heritage Days 2026.
Discover this remarkable museum dedicated to the local history of the town of Moisson in the Yvelines, during Heritage Days 2026, the weekend of September 19 and 20. [Read more]
Heritage Days 2026: Classic car exhibition at the Château de Maisons-Laffitte (78)
On the occasion of Heritage Days, come discover the magnificent Château de Maisons-Laffitte, built for King Louis XIV, on Saturday, September 19 and Sunday, September 20, 2026, in Yvelines! A wonderful chance to explore this treasure of Île-de-France’s local heritage! [Read more]
Heritage Days 2026: the program at Poissy's Maison de Fer (78)
What to do for Heritage Days 2025 in Yvelines? In Poissy, this is your chance to (re)discover the Iron House on September 19, 2026. Discover this astonishing and one-of-a-kind building, whose visit should delight lovers of architectural gems. [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), the space program
Craving a weekend that takes you to infinity and beyond? On September 19 and 20, 2026, the European Heritage Days fling open their doors to museums, institutions and unexpected venues. Among them, Parc aux Étoiles in Triel-sur-Seine (78) invites you to explore a captivating cosmic realm for free. [Read more]
Heritage Days 2026 at the André Derain House (78): the program
Let yourself be swept up by the color and the brushwork of the great masters for European Heritage Days! They invite you to step through doors you’ve never seen before, such as in Chambourcy, in the Yvelines, where the André Derain House-Museum opens its studio and reveals the flamboyant treasures of Fauvism and the 20th century. [Read more]
Heritage Days 2026: an offbeat program at the Désert de Retz in Chambourcy (78)
For Heritage Days 2026, a bucolic experience is taking shape at the Désert de Retz in Chambourcy, Yvelines, this Sunday, September 20. On the agenda? Free activities in the heart of this beautiful green haven. [Read more]
Family activities and museum tours at the Jouy Textile Museum for Heritage Days 2026
For European Heritage Days 2026, on September 19 and 20, the Musée de la Toile de Jouy welcomes curious visitors and is planning free activities in the Yvelines. [Read more]
European Heritage Days 2026: Free tours of Versailles City Hall (78)
The 43rd Heritage Days invite you to see Versailles in a new light. On Sunday, September 20, 2026, discover the secrets of the royal city with an exclusive tour of the Hôtel de Ville, a historic monument and former home of one of Louis XIV’s daughters. [Read more]
Heritage Days 2026: Free admission to the Grand Stables of Versailles (78)
The Versailles Equestrian Academy and Versailles Campuses will open the doors to the Grand Stables at the Palace of Versailles for Heritage Days on the weekend of September 19–20, 2026. The weekend’s program is now being unveiled. [Read more]
Heritage Days 2026: Visit Château de Breteuil (78) for an immersive history experience.
The Château de Breteuil participates in Heritage Days on the weekend of September 19–20, 2026. During this day, visitors can tour the Château des Contes de Perrault, 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]
European Heritage Days 2026 at the Château de Monte-Cristo: Weekend program
Looking to dive into the world of Alexandre Dumas? The Château de Monte-Cristo opens its doors for Heritage Days on September 19 and 20, 2026, with wallet-friendly admission. [Read more]
Journées du Patrimoine 2026: discover the remarkable inland waterways museum in Conflans-Sainte-Honorine
They're back: on the weekend of September 19–20, 2026, the Journées du Patrimoine kicks off its new edition in Paris and the Île-de-France region. In Conflans (78), come visit the Batellerie and Navigable Waterways Museum! [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]
This Yvelines château opens its doors for guided tours during Heritage Days 2026.
Want to conquer the castles of Île-de-France during the Heritage Days weekend on September 19–20, 2026? Here’s the Château de Neuville’s program, located in the Yvelines. [Read more]
Discover this picturesque town and its treasures for Heritage Days 2026 in the Paris region.
There’s plenty to do in Conflans-Sainte-Honorine for Heritage Days 2026! Browse the schedule of tours and activities that will shape the weekend of September 19–20, 2026, in this charming town in the Yvelines. [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 in Saint-Germain-en-Laye (78): the royal city’s program.
Heritage Days are back on 19 and 20 September 2026 in Paris and Île-de-France, bringing you fresh cultural discoveries. In Yvelines, Saint-Germain-en-Laye stays true to tradition and presents a 'royal' program to explore during this exceptional weekend. On your calendars: mark these dates! [Read more]
Heritage Days 2026 in Rambouillet (78): Historic Monuments to Explore
On the occasion of the new edition of the Heritage Days, the town of Rambouillet in Yvelines invites you to a weekend of discoveries and guided tours at the heart of its Historic Monuments, on September 19–20, 2026. [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 in Saint-Rémy-lès-Chevreuse (78): the program
In the heart of the Chevreuse Valley, an exciting town invites you to uncover its secrets and the illustrious figures who have walked its lands. For Heritage Days 2026, what if we wandered Saint-Rémy-les-Chevreuse? Here’s what to expect in this new edition! [Read more]
For Heritage Days 2026, Mantes-la-Jolie unveils its wonders!
Embark on a historical adventure in Mantes-la-Jolie during Heritage Days! On September 19 and 20, 2026, discover a rich heritage and let yourself be carried away by the tales of yesteryear that have made this jewel of the Yvelines renowned. [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]
Special opening of the park at Château de Bourdonné (78) for the 2026 Heritage Days
Private property closed to the public, the Château de Bourdonné will exceptionally open the gates to its verdant grounds for the Heritage Days 2026. A chance to discover this elegant Louis XIII–style residence in the heart of a Yvelines town, as seen from its gardens! [Read more]
Heritage Days 2026 in Houdan (78): the program for the medieval town
Nestled in the heart of Yvelines, a charming medieval town still hides a wealth of relics from the Middle Ages—dungeons, ramparts, and old inns. For Heritage Days on September 19 and 20, 2026, come and discover them in Houdan! Here’s what awaits you for this exceptional weekend. [Read more]
Discover Chevreuse through its most iconic monuments for Heritage Days 2026.
Join us on September 19 and 20 to visit Chevreuse's finest monuments in the Yvelines, for Heritage Days 2026. [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]
Heritage Days 2026: Tours of Yvelines' castles, outings in the 78
And why not use Heritage Days 2026 to set off in search of the castles of Île-de-France? Head to the Yvelines to discover the splendid residences that will open their doors this weekend of September 19 and 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
