It's back, that event we eagerly anticipate every year: the 43rd edition of Heritage Days take place this weekend on September 19 and 20, 2026. But why do we love this cultural gathering so much? Here’s a quick rundown for anyone who might be catching up.
During the Journées du Patrimoine (Heritage Days), over 1,500 sites open their doors to us for a weekend, free of charge or at a reduced price. Monuments, museums, churches, factories and shops, institutions, gardens, places of power, historical or architectural curiosities... All these extraordinary places welcome the curious, and let us discover their particularities. This is often an opportunity to discover places closed to the public, and to get to know our region better.
Paris is a city of art and culture, the capital of France with a thousand years of history: of course, there are a thousand things to do during the Journées du Patrimoine. But if you'd like to discover new horizons without crossing the whole of theÎle-de-France region, we have a few suggestions.
Here's a selection of places to see in the départements of Ile-de-France, accessible by metro, RER, bus, TER or streetcar. With a flick of your Navigo, you'll be transported to lands you've never seen before! Let yourself be tempted by this wonderful adventure!
Heritage Days 2026: tours and activities in Argenteuil (95), the program
Discover Heritage Days in Argenteuil this Saturday, September 19 and Sunday, September 20, 2026! Explore the city’s cultural wealth, its iconic monuments, and its fascinating past during this unique weekend. An opportunity to immerse yourself in the heritage of one of the Val-d’Oise’s largest cities! [Read more]
Heritage Days 2026 at Claude Monet's Impressionist House in Argenteuil (Val-d'Oise)
For the 2026 Heritage Days, Claude Monet's Impressionist House invites you to Argenteuil on September 19 and 20, 2026. Check out the program! [Read more]
Heritage Days 2026 in Beaumont-sur-Oise (95): what's on in town
Discover Beaumont-sur-Oise during Heritage Days 2026! On September 19 and 20, embark on a memorable journey through history and exceptional architecture. Let yourself be drawn to its hidden treasures and its promising activities! [Read more]
Heritage Days 2026: visit to the park and the vegetable garden of the Château de la Celle-Saint-Cloud (78)
On 19 and 20 September 2026, you can, exceptionally, explore the magnificent gardens of the Château de la Celle-Saint-Cloud in Yvelines, a property owned by the Ministry for Europe and Foreign Affairs that hosts heads of state! [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]
Hidden beneath a convent in the Île-de-France region, this crypt will open exceptionally for Heritage Days 2026.
For the 2026 Heritage Days, discover the crypt of the English Benedictine Convent in Pontoise, a site steeped in history that will unusually be open to the public on the weekend of September 19–20, 2026. [Read more]
Heritage Days 2026 at the National Institute of Heritage in Aubervilliers (Seine-Saint-Denis 93)
Discover a renowned French grande école that sits at the heart of culture, and a strikingly unconventional building, by visiting the National Institute of Heritage in Aubervilliers. An open house is being held on Saturday, September 19, 2026, for Heritage Days. [Read more]
Exceptional free opening of the Roseraie de L'Haÿ-les-Roses for Heritage Days
Good news for flower and nature lovers: the Roseraie de L'Haÿ-les-Roses will open its gates free of charge on September 19 and 20, 2026, for the Heritage Days. [Read more]
Heritage Days 2026: a full slate of discoveries in Ivry-sur-Seine (94)
Strolls, churches, an art center, a theater, an observatory... Ivry-sur-Seine is full of points of interest. Make the most of Heritage Days on September 19 and 20, 2026, to discover this Val-de-Marne commune. [Read more]
Heritage Days 2026: the gems to visit in the town of Sucy-en-Brie (94)
For the 2026 Heritage Days, the town of Sucy-en-Brie is offering a wide array of tours and meetings. It’s a chance to discover the town from a new perspective, on Saturday, September 19 and Sunday, September 20. [Read more]
Heritage Days 2026 in Sainte-Geneviève-des-Bois (91): the schedule of tours
In Essonne, the town of Sainte-Geneviève-des-Bois unveils a rich lineup for Heritage Days 2026. Mark your calendars for September 19–20, 2026, to discover the many treasures of this site, easily accessible with a Navigo pass! [Read more]
Heritage Days 2026 at the Île-de-France Prehistory Museum (77): the program
The Île-de-France Prehistory Museum in Nemours opens its doors to archaeology enthusiasts for Heritage Days this Sunday, September 20, 2026, with a special lineup of events. [Read more]
Heritage Days 2026 in Melun (77): events and tours on the agenda
Every year, Heritage Days invites you to a rich program full of great cultural highlights! Discover the tours and activities awaiting you in Melun, in Seine-et-Marne, for this exceptional weekend of September 19–20, 2026. [Read more]
Heritage Days 2026 at Paris Orly Airport — discover the program!
Parés au décollage ? Paris Orly Airport reveals its lineup for Heritage Days 2026 across Paris and the Île-de-France region. Here’s what you can expect this weekend of September 19 and 20, 2026. [Read more]
Market, vintage cars and sheepdogs: Heritage Days 2026 at Mesnil-Voysin Castle
The Château de Mesnil-Voysin, situated in Bouray-sur-Juine, awaits you this weekend, September 19–20, 2026, for Heritage Days. Discover this special program. [Read more]
Heritage Days 2026 in Rosny Rail (93): discover the Seine-Saint-Denis train museum
Are you familiar with the Rosny-sous-Bois Train Museum? For Heritage Days, the Rosny Rail Museum will open its doors free of charge on Saturday, September 19 and Sunday, September 20, 2026, inviting you on a journey to the heart of railway history! [Read more]
Heritage Days 2026: Guided tours of the Bank of France in Vincennes (Val-de-Marne, 94)
The Banque de France in Vincennes will open its doors on an exceptional date, 19 September 2026, for the Heritage Days. It’s an opportunity to discover its history and its missions. [Read more]
Journées du Patrimoine 2026 à l'École nationale vétérinaire de Maisons-Alfort (94)
Heritage Days 2026 at the National Veterinary School of Maisons-Alfort (94)
On the occasion of the 43rd European Heritage Days, the National Veterinary School of Maisons-Alfort and its museum invite you to join free guided tours on 19 and 20 September 2026. A perfect opportunity to discover the history of this unusual site. Warning: not for the faint of heart. [Read more]
Heritage Days 2026: explore the AP-HP Museum's collections in Kremlin-Bicêtre
The AP-HP Museum, based in Kremlin-Bicêtre in Val-de-Marne, will take part in the new Heritage Days on Saturday, September 19, 2026. [Read more]
Heritage Days 2026: Guided tour of the Sarcelles Naval Museum (95)
On 19 and 20 September 2026, discover the story of French maritime history for free at the Naval Museum of Sarcelles, with guided tours and activities for everyone. [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: free Van Gogh–themed tour at the Château d'Auvers-sur-Oise (Val-d'Oise)
The Château d'Auvers-sur-Oise invites you to the weekend of September 19–20, 2026, for the 43rd edition of Heritage Days. Discover the program waiting for you this year. [Read more]
Heritage Days 2026: free performance at the Château de Champs-sur-Marne (Seine-et-Marne)
For Heritage Days 2026, the Château de Champs-sur-Marne unveils an artistic program to explore over the weekend of September 19–20, 2026. [Read more]
Heritage Days 2026: Explore the King’s Cellars with a subterranean tour in Sèvres
At Sèvres, history is hidden even beneath the city's streets... During Heritage Days on September 19 and 20, 2026, explore the king’sCellars. Registration will open soon. [Read more]
Would you rather stay in Paris this weekend of September 19–20? No problem: there’s a wealth of exceptional places to discover!
Heritage Days 2026 in Paris (75): the borough-by-borough programme of visits
For the 2026 Heritage Days in Paris, the capital’s monuments and historic sites throw open their doors (often free) to reveal their secrets. Don’t miss this unmissable event, scheduled for the weekend of September 19–20, 2026, with the themes: "Heritage in Peril" and "Heritage of Photography." [Read more]
The Heritage Days are rolling into Paris and Île-de-France for the weekend of September 19–20, 2026. Still haven't mapped out your programme? We're revealing places that are open to the public without booking, offering free-access visits you can drop in on at the last minute! [Read more]
Dates and Opening Time
From September 19, 2026 to September 20, 2026
Prices
Free
Heritage Days 2026 in Paris (75): the borough-by-borough programme of visits
Heritage Days 2026 in Paris and Île-de-France: tours you can visit without booking
