It's one of the major cultural events of the autumn : a weekend of strolls, discoveries and games. Throughout Paris and theÎle-de-France region, thousands of official, historical, cultural, artistic and religious sites open their doors to the general public - and most often, free of charge!
But what is this extraordinary event that lets you tour in a single day the Élysée Palace, the Grand Rex, the Bank of France, and the backstage of Galeries Lafayette? It’s the Journées du Patrimoine, back for its 42nd edition this weekend, September 19 and 20, 2026.
Each year, the Journées du Patrimoine are organized around one or more specific themes, highlighting the behind-the-scenes trades, little-known monuments and technical infrastructures that are part of our heritage, or help to keep it alive.
Sustainable heritage, arts and entertainment, heritage and nature, heritage and education... The themes vary and appeal to a wide range of audiences and interests, for a constantly renewed program.
On September 19 and 20, 2026, the Heritage Days will center on the themes "Heritage of Photography" and "Heritage at Risk". Discover the venues and activities to explore over the weekend, tied to this year's themes.



Heritage Days 2026: Discover the remnants of Bagnolet's peach orchard
On the occasion of the 2026 Heritage Days, the Bagnolet peach grove invites visitors to step back in time. This little-known site in Seine-Saint-Denis bears witness to a horticultural past that long defined the eastern Paris area. [Read more]



This endangered castle with distinctive architecture opens to visitors for Heritage Days 2026.
Time-worn yet at the heart of a large restoration project, the Château de Vigny opens its doors on 19 and 20 September 2026 for Heritage Days. A chance to discover one of the most distinctive monuments in Val-d'Oise. [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]



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: Activities and Tours at the International University Campus
For the 2026 Heritage Days, on Saturday 19 and Sunday 20 September, the International University City will host a variety of activities for all audiences. [Read more]



Heritage Days 2026: Exploring Cité Falguière, a hidden artistic treasure
Les Journées du Patrimoine 2026 reveal a hidden gem: the Cité Falguière in Paris. Mark your calendars for September 19 and 20 for a unique journey through the capital’s artistic history during this 43rd edition. [Read more]



A stroll through the glass towers of La Défense for the 2026 Heritage Days
Explore La Défense from a new angle with guided tours organized on Sunday, September 20, 2026 for Heritage Days. [Read more]



This air-raid shelter in the Paris region will be open to visitors for the 2026 Heritage Days.
Heritage Days are back in the Île-de-France region, and for the occasion an air-raid shelter dating from World War II will be open to visitors in an exceptional visit over the weekend of 19–20 September 2026. [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]



Discover the National School of Architecture in Paris during Heritage Days 2026.
Among the exceptional openings planned for Heritage Days 2026, on September 19 and 20, you’ll find the National School of Architecture, which is offering its special program for the weekend of September 19–20, 2026. [Read more]



European Heritage Days 2026: the program at the BnF's various sites in Paris
For Heritage Days, the Bibliothèque nationale de France opens its doors on the weekend of September 19–20, 2026. On the agenda: tours of the various sites, visits to the restoration workshops, and demonstrations of a wealth of documents. [Read more]



Here is Île-de-France’s sole troglodyte castle, open to visitors for the 2026 Heritage Days.
On the occasion of the Heritage Days on 19 and 20 September 2026, discover the Château de la Roche-Guyon, a unique landmark in Île-de-France, nestled in the Val d’Oise. [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: tour of the construction site at the Church of the Holy Trinity in Paris
The Church of the Holy Trinity opens its doors for Heritage Days on Sunday, September 20, 2026. On the agenda: a tour of the church, which is currently undergoing restoration. [Read more]



Montagu Castle in Essonne reveals its lineup for the 2026 European Heritage Days.
This Essonne treasure reveals its secrets for the 43rd edition of Heritage Days: Montagu Castle invites you to join in and unveils its program for the weekend of September 19–20, 2026. [Read more]



Heritage Days 2026: explore the Valentin Haüy Museum, devoted to the history of the blind.
For the 43rd edition of Heritage Days, the Valentin Haüy Museum invites Parisians and residents of Île-de-France to explore the history of blindness, on Saturday, September 19, 2026. [Read more]



Journées du Patrimoine 2026: the program at the National Institute of Heritage in Aubervilliers (93)
Discover a major French grande école that sits at the heart of culture, and an architecturally distinctive building, by visiting the National Institute of Heritage in Aubervilliers. Open doors are planned for September 19, 2026, as part of the 43rd Heritage Days. [Read more]



Journées du Patrimoine 2026 : discover the Japanese Gardens of Favières (77)
The Japanese Gardens site in Favières, Seine-et-Marne, will open its doors at a preferential rate on September 19 and 20 for Heritage Days 2026. Reserve your nature stroll. [Read more]



Heritage Days 2026 at the Paris Commercial Court: an exceptional guided tour
On the occasion of the 2026 Heritage Days, the Paris Commercial Court invites you to join us on Saturday, September 19 and Sunday, September 20, 2026. Judge-guides will be on hand for exceptional guided tours of the court, built between 1860 and 1865. [Read more]



Heritage Days 2026 in Paris: the program at the National Maritime Museum
All hands on deck: Heritage Days are here! The National Navy Museum, perched at the Trocadéro in Paris, will open its doors free of charge on 19 and 20 September 2026 to mark the occasion. [Read more]



Heritage Days 2026 in Paris: at the Collège de France, an exceptional lineup of tours.
For the 2026 Heritage Days in Paris, the Collège de France invites you to discover 2,000 years of history through guided tours this weekend, September 19–20, 2026. Here are the practical details and the programme for this new edition! [Read more]



Saint-Anne Hospital and its art museum unveil their program for Heritage Days 2026.
Heritage Days 2026 also offer a window into the hidden heritage of Paris’s hospitals. At Sainte-Anne, a special program awaits for the weekend of September 19–20, 2026. [Read more]



Dive into the heart of stained glass artistry for Heritage Days 2026 in Paris
La Maison du Vitrail takes us to the heart of a vibrant craft for the 2026 Heritage Days. Here is the schedule for this weekend, September 18–20, 2026. [Read more]



European Heritage Days 2026 in Paris: the Gare du Nord program
Want to see Gare du Nord in a new light? It’s possible thanks to the 42nd edition of Heritage Days, taking place on Saturday, September 19 and Sunday, September 20, 2026! [Read more]



European Heritage Days 2026: Behind the scenes at the Grand Rex, an icon of Parisian cinema
For Heritage Days 2026, the Grand Rex will open its backstage areas to the public on Saturday, 19 September and Sunday, 20 September. [Read more]



European Heritage Days 2026 at the Niemeyer Space, the Communist Party’s Paris headquarters
For the 2026 Heritage Days, take a tour of the iconic Niemeyer Space, the headquarters of the French Communist Party. Designed by Brazilian architect Oscar Niemeyer, this futuristic building with bold, sculptural forms is opening its doors for an exceptional, immersive experience. [Read more]



Heritage Days 2026 in Paris: the Saint-Serge de Radonège Orthodox Church, an unusual venue
The Saint-Serge de Radonège Church, one of the most unconventional gems in Paris's 19th arrondissement, invites you to uncover its secrets for Heritage Days, this weekend of September 19–20, 2026. [Read more]



Heritage Days 2026 at Citéco, Paris's City of the Economy, guided tour of the Hôtel Gaillard
On the occasion of the 43rd Heritage Days, Citéco - the City of the Economy opens its doors to curious visitors this Saturday, September 19 and Sunday, September 20, 2026. It’s a chance to explore the treasures housed inside this remarkable museum, right in the heart of Hôtel Gaillard! [Read more]



Heritage Days 2026 at Sorbonne University - Pierre and Marie Curie Campus, the programme
For the 2026 Heritage Days, Sorbonne University reveals its secrets at the Pierre and Marie Curie Campus through a special program planned for the weekend of September 19–20, 2026. [Read more]



Heritage Days 2026: self-guided tour of the Forney Library – Hôtel de Sens
On the occasion of the 2026 Heritage Days in Paris, the Hôtel de Sens, home to the Forney Library, will open its doors to the public free of charge on Saturday 19 and Sunday 20 September 2026. [Read more]



Heritage Days 2026 at the National Archives of Paris: the weekend program.
For this 43rd edition of Heritage Days, the National Archives of Paris will throw open its doors on Saturday, September 19 and Sunday, September 20, 2026, offering tours of its grand townhouse and its exhibitions. [Read more]



Heritage Days 2026: Self-guided tours of the garden and the reception rooms at the Embassy of the Czech Republic
For Heritage Days, the Czech Republic Embassy will exceptional open its doors on Saturday, September 19, 2026, inviting visitors to discover its reception rooms and garden, set in a historic private townhouse steeped in history. [Read more]



Heritage Days 2026: games and behind-the-scenes tours at the Paris Archives
The Paris Archives take part in Heritage Days on Saturday, September 19 and Sunday, September 20, 2026, inviting visitors to discover the institution’s behind-the-scenes workings, as well as Paris’s history from a fresh angle. [Read more]
Do you already know all these places in Paris and the Ile-de-France region? If not, you know what to visit during the Journées du Patrimoine!
Dates and Opening Time
From September 19, 2026 to September 20, 2026
Prices
Free
Official website
journeesdupatrimoine.culture.gouv.fr