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: visit the Conciergerie, the former prison of the French Revolution in Paris
On the occasion of European Heritage Days, the Conciergerie is opening its doors to visitors free of charge on Saturday, September 19 and Sunday, September 20, 2026. What's on the agenda? Free, self-guided tours of this former Parisian prison steeped in history. Don’t miss this great tip! [Read more]



Heritage Days 2026: A stroll through Sainte-Chapelle, Paris's thousand-stained-glass monument
Take advantage of the 43rd Journées du Patrimoine to step inside the sublime Sainte-Chapelle, the capital’s architectural jewel built in the 13th century. On 19 and 20 September 2026, come learn more about this hidden gem, built to house the Crown of Thorns of Christ. [Read more]



Heritage Days 2026: A stroll to the heart of the towers of Notre-Dame Cathedral in Paris
Heritage Days are making a grand return to the very heart of Notre-Dame Cathedral in Paris. On September 19 and 20, 2026, the monument will offer a special guided route for visitors. A pivotal moment to rediscover this Gothic jewel as we haven’t seen it for years. Reservations will open soon. [Read more]



In Paris, during the 2026 Heritage Days, discover the Maison d’Ourscamp, tucked away in the heart of the marsh.
For the 2026 Heritage Days in Paris, discover the Maison d'Ourscamp, one of the few remaining examples that blend medieval and Renaissance architecture in the city. Join us on Saturday, September 19 and Sunday, September 20, 2026 for a free family outing, highlighted by guided tours. [Read more]



Heritage Days 2026: explore the John the Fearless Tower and Medieval Paris.
Medieval Paris comes alive again at the Tour Jean-Sans-Peur during Heritage Days on September 19 and 20, 2026. This tour offers a glimpse of one of the final vestiges of the Dukes of Burgundy’s palace in the heart of the capital. [Read more]



Journées du patrimoine 2026 à Paris: jazz-writing workshops and a flea market in the gardens of Broca Hospital
Heritage Days are back, ready to fill us once again with free activities. In the gardens of Broca Hospital, a splendid program awaits you for the weekend of September 19–20, 2026. [Read more]



Heritage Days 2026: Cluny Museum unveils its Middle Ages–focused program
Discover free access to the Cluny Museum and its medieval-themed parcours during the 2026 Heritage Days in Paris and Île-de-France, on the weekend of September 19–20, 2026. [Read more]



Heritage Days 2026: discover the iconic Sorbonne University in Paris
For Heritage Days, the Sorbonne is organizing a range of events around this historic and cultural landmark over the weekend of Saturday, September 19 and Sunday, September 20, 2026. Here’s the program for this edition. [Read more]



Heritage Days 2026 in Paris: Henri IV High School to open its doors for a special occasion
Le lycée Henri IV unveils its medieval treasures for Heritage Days this weekend, September 19–20, 2026, in Paris. Here’s the program! [Read more]



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: 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]



The ruins of Port-Royal des Champs, the refuge of Pascal and Racine, worth a visit for the 2026 Heritage Days.
Relive the Grand Siècle in Magny-les-Hameaux on September 19 and 20, 2026. Discover the remnants of Port-Royal des Champs, a site of memory for Pascal and Racine. [Read more]



Hauts-de-Seine: discover this enigmatic underground labyrinth for the 2026 Heritage Days
Craving an offbeat adventure? The King's Caves in Sèvres reveal their stone labyrinth for the 2026 Heritage Days in Île-de-France. [Read more]



Journées du Patrimoine 2026 : exploring the Keep of Moret, the former royal residence
For the 2026 Heritage Days in Seine-et-Marne, discover the Keep at Moret-sur-Loing. A medieval and unusual retreat just a stone's throw from Paris, nestled in a former royal residence. [Read more]



This privately owned medieval castle opens its doors to visitors for Heritage Days 2026.
Situated in Essonne, the Château de Villeconin invites the public to discover the Journées du Patrimoine by revealing its treasures through a weekend program of tours on September 19 and 20, 2026. [Read more]



For Heritage Days 2026, embark on a journey to discover this abbey in the heart of the Yvelines.
Set off to discover the medieval treasures of the Abbey of Our Lady of the Rock in Lévis-Saint-Nom, for the 2026 Heritage Days. Explore a well-preserved gem of the Yvelines, tucked in the heart of the Chevreuse valley. [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): weekend activities
The European Heritage Days return in style on the weekend of September 19–20, 2026. To mark the occasion, Lagny-sur-Marne in Île-de-France offers a range of tours and activities for visitors. Here is the lineup you won’t want to miss. [Read more]



European Heritage Days 2026 at the Château de Saint-Germain-en-Laye – National Archaeology Museum (78), program
The Château de Saint-Germain-en-Laye is taking part in the 2026 Heritage Days. On the program for Saturday, September 19 and Sunday, September 20, guided tours of the château and the National Archaeology Museum, and many other activities to boot. [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 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]



In Bussy-Saint-Georges, discover a historic watermill for the 2026 Heritage Days.
On September 19 and 20, 2026, the Moulin de Russon will unveil its history, its water wheel and its mechanisms during Heritage Days. Here's the program! [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]



Heritage Days 2026: Fencing taster, archery workshops, and a medieval show for the inauguration of this ancient keep
In Étampes, the Tour de Guinette is set to celebrate its public inauguration in grand style during the Heritage Days weekend 2026, on September 19–20, 2026. A wide lineup of historical activities awaits visitors—here’s everything you need to know! [Read more]



Heritage Days 2026: discover the dungeons of Nemours Castle (77)
In its 43rd edition of Heritage Days, the Nemours castle-museum offers tours and activities on September 19 and 20, 2026. On the itinerary: exclusive tours of the castle’s underground vaults and a range of other activities. [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]



Heritage Days 2026: Castle tour and historical reenactment in Beynes (78)
In the heart of the Yvelines, a charming town hides a handful of medieval gems you won’t want to miss during the 2026 Heritage Days. A splendid historical program awaits you in Beynes! [Read more]



Discover the Château de Brie-Comte-Robert during Heritage Days 2026.
In Seine-et-Marne, the Château de Brie-Comte-Robert is set to feature during Heritage Days over the weekend of September 19–20, 2026 — discover the program! [Read more]



Heritage Days 2026: discover this astonishing historic vault in Seine-et-Marne
Looking for offbeat tours for Paris’s Journées du Patrimoine 2026? The Vault of the Holy Spirit, tucked beneath the former military site that gave it its name, is a fine medieval relic to discover this weekend of September 19–20, 2026. [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 activities at the Château de Vincennes (94)
For the 43rd Heritage Days, the Château de Vincennes — home to Europe’s tallest keep — invites you to a rich cultural exploration of the medieval monument. See you this weekend, September 19–20, 2026. [Read more]



Heritage Days 2026 in Sainte-Geneviève-des-Bois (91): This weekend’s program
In Essonne, the town of Sainte-Geneviève-des-Bois unveils a rich program for the 2026 Heritage Days. Save the dates: September 19 and 20, 2026, to discover the town’s many treasures, all within easy reach with a Navigo pass! [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: 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: 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]
Ready for a great history lesson?
Dates and Opening Time
From September 19, 2026 to September 20, 2026
Prices
Free
Recommended age
For all