The Journées du Patrimoine in Paris is also an opportunity to step back in time and immerse yourself in thecapital's history. And if you've fallen in love with the Middle Ages, we suggest you take advantage of this cultural event to discover the secrets of Paris's medieval monuments.
It must be said that remnants from the medieval era are relatively scarce in Paris. Of the capital’s 2,185 monuments, only about thirty date back to the Middle Ages. And for the Heritage Days this weekend of September 19–20, 2026, some of them invite you to uncover their mysteries, notably through guided tours and unusual activities.
You've never heard of the Heritage Days? This European event takes place every year in September. The aim? To highlight the history and heritage of each region. Museums, churches, castles, parks, sports venues and other exceptional places open their doors to the public for a whole weekend. For the full program, click here! And don't forget to stay tuned: this page is updated as we make announcements and discoveries.
So, are you ready to discover medieval Paris? Follow the guide!



Heritage Days 2026: explore the Conciergerie, the former prison of the French Revolution
On the occasion of Heritage Days, the Conciergerie invites you to free admission as it opens its doors on Saturday, September 19 and Sunday, September 20, 2026. What’s on the schedule? Self-guided tours of this former Parisian prison, steeped in history. [Read more]



Heritage Days 2026 in Paris: visit Sainte-Chapelle, the monument famed for its thousand stained-glass windows
Take part in the 2026 Heritage Days by stepping into the magnificent Sainte-Chapelle, the capital's architectural jewel built in the 13th century. On Saturday, September 19 and Sunday, September 20, come discover more about this hidden gem, built to safeguard the Crown of Thorns of Christ. [Read more]



Heritage Days 2026: an unmissable tour of the towers at Notre-Dame Cathedral
Heritage Days are making a grand return to the heart of Notre-Dame Cathedral in Paris! On September 19 and 20, 2026, the monument will offer a special visitor route. A highlight for rediscovering this Gothic jewel as we haven’t seen it in years. [Read more]



Heritage Days 2026 in Paris: discover the Maison d'Ourscamp, nestled in the heart of the marsh.
For the 2026 Heritage Days in Paris, let’s go discover the Maison d’Ourscamp, one of the few remnants that blends medieval and Renaissance architecture in the city. Mark your calendars for Saturday, September 19 and Sunday, September 20, 2026 for a free family outing with guided, commentary-led tours. [Read more]



Heritage Days 2026: the Tour Jean-Sans-Peur, a medieval relic at the heart of Paris
Jean-Sans-Peur Tower invites visitors to step back into medieval Paris for Heritage Days, on September 19–20, 2026. This remnant of the Dukes of Burgundy’s palace reveals its history, its architecture, and the traces of a power that left its mark on the capital. [Read more]



Writing workshop, flea market and jazz in a tucked-away Paris garden for the 2026 Heritage Days.
Heritage Days 2026 are back for their 43rd edition, and in Paris it’s the perfect time to discover a beautiful hidden garden, where a range of activities awaits you on the weekend of September 19–20, 2026. [Read more]



Immersion in the Heart of the Middle Ages at the Musée de Cluny for Paris’s 2026 Heritage Days
The Cluny Museum is set to take us into the heart of its medieval collections for Paris’s 2026 Heritage Days. Mark your calendars for the weekend of September 19–20, 2026 to explore the program! [Read more]



Journées du Patrimoine 2026 à Paris : visit the prestigious Sorbonne University
For Heritage Days, the Sorbonne is staging a range of events around this historic and cultural landmark over the weekend of Saturday, September 19 and Sunday, September 20, 2026. [Read more]



Explore the medieval heritage of Lycée Henri-IV during the 2026 Heritage Days.
For this 43rd edition of Heritage Days, the Henri IV High School reveals its buildings listed as Historic Monuments during an exceptional open-house weekend on September 19–20, 2026. [Read more]



Heritage Days 2026: A tour of the medieval town and its crypt in Château-Landon (77)
For Heritage Days, the medieval town of Château-Landon invites you to join them on 19 and 20 September 2026 for an exceptional tour through its monuments, including the lesser-known ones, in the heart of Seine-et-Marne. [Read more]



Heritage Days 2026 in Lagny-sur-Marne (77): tours and activities on the agenda
Heritage Days are making a triumphant return over the weekend of September 19 and 20, 2026. To mark the occasion, a range of tours and activities awaits you in Lagny-sur-Marne, in Île-de-France. Ready to discover the treasures of Seine-et-Marne? [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]



(Re)discover the necropolis of the kings of France and its medieval garden during Heritage Days 2026.
The Basilica of Saint-Denis, renowned for housing France’s royal necropolis, unveils a rich lineup for the 2026 Heritage Days. An organ concert, activities, and even special tours of its medieval garden — here’s what to expect on September 19 and 20, 2026. [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]



The Russon Mill, a remarkable rural relic to discover during the 2026 Heritage Days.
In Bussy-Saint-Georges, explore a restored historic water mill and its story during the 2026 Heritage Days in Île-de-France, coming up on the weekend of September 19–20, 2026. [Read more]



Heritage Days 2026: tours of Maubuisson Abbey (Val-d'Oise, 95) — the program
For Heritage Days, the Maubuisson Abbey opens its doors to visitors on Saturday, September 19 and Sunday, September 20, 2026. Check out the program! [Read more]



Heritage Days 2026 at Villeconin's medieval castle (91): the program!
The Château de Villeconin, located in Essonne, invites us to make the most of Heritage Days by highlighting its treasures through a weekend program of tours on 19 and 20 September 2026. [Read more]



In Étampes, the Guinette Tower marks its inauguration during the 2026 Heritage Days.
After several years of restoration, the Guinette Tower is ready to welcome the public again on September 19 and 20, 2026, for Heritage Days. An event that will shine a spotlight on one of the principal witnesses to Étampes' medieval history. [Read more]



Exclusive tours into the heart of a medieval castle’s dungeons for Heritage Days 2026
In the Paris region, the Château-Musée de Nemours invites visitors to an exceptional tour through the heart of its dungeons for Heritage Days 2026, on the weekend of September 19–20, 2026. Here is the program in detail! [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 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 at Brie-Comte-Robert Castle (77): weekend program
The Château de Brie-Comte-Robert opens its doors for the 43rd edition of Heritage Days. Here is the schedule for this weekend of September 19–20, 2026. [Read more]



This vault is the last remnant of a former medieval hospital, and it will be unveiled for Heritage Days 2026.
Right in the heart of Provins' medieval city, a rich heritage awaits that's well worth a detour. For Heritage Days 2026, visitors will have the chance to discover the Caveau du Saint-Esprit this weekend, September 19–20, 2026. [Read more]



Hidden beneath an old convent, this Pontoise crypt will be exceptionally open to visitors for the 2026 Heritage Days.
In Pontoise, the crypt of the English Benedictine Convent will unusually open its doors on September 19 and 20, 2026. Discover this little-known landmark of Val-d'Oise heritage and its history. [Read more]



Heritage Days 2026: Guided tours to discover the Château de Vincennes (94)
For Heritage Days 2026, the Château de Vincennes, home to the tallest keep in Europe, awaits you for a delightful cultural discovery of this medieval monument this weekend of September 19–20, 2026. [Read more]



Heritage Days 2026 in Sainte-Geneviève-des-Bois (91): the town’s schedule of visits
In Essonne, the town of Sainte-Geneviève-des-Bois unveils a rich lineup for Heritage Days 2026. Save the dates: September 19 and 20 to discover the many treasures of this spot easily reachable with a Navigo pass! Here are the tours on the program for this weekend of culture! [Read more]



Heritage Days 2026 in Provins (77): the schedule of events in a medieval town
During Heritage Days 2026, what if you take a plunge into the heart of the Middle Ages? In Seine-et-Marne, the town of Provins and its medieval city, a UNESCO World Heritage site, unveils its program of tours and activities for the weekend of September 19–20, 2026. Mark your calendar! [Read more]



Heritage Days 2026 at Beaumont-sur-Oise Castle (95), the program
Beaumont-sur-Oise Castle opens up for Heritage Days 2026. A relic of the Middle Ages, the castle’s keep dominates the banks of the Oise and offers a splendid view of Saint-Laurent Church, to be discovered on September 19 and 20. [Read more]



Heritage Days 2026: exclusive tours of Royaumont Abbey (95)
For the 2026 Heritage Days, on September 19 and 20, the Royaumont estate opens its doors for guided tours of the Abbey and its gardens. [Read more]
Ready for a great history lesson?
Dates and Opening Time
From September 19, 2026 to September 20, 2026
Prices
Free
Recommended age
For all