In Paris and the Ile-de-France region, a number of museums and institutions focus on thearmy, its role, its history, its players, its evolution... These themes fascinate the curious, from 7 to 77 years old. If you too are fascinated by this universe, don't miss the next edition of the Journées du Patrimoine: on the occasion of this cultural weekend, many military museums and institutions open their doors to us.
On September 19 and 20, 2026, we return with great pleasure to the Journées du Patrimoine. This annual event aims to highlight historic and cultural sites, as well as local curiosities. For the occasion, thousands of venues open their doors to the public for a week-end, inviting everyone to take part in popular activities — often gratuites!
As you'll have gathered, it's an unmissable event in the cultural calendar, giving us the chance to see many unsuspected wonders close to home, and to indulge our passions. If yours revolves around the military world, here are some suggestions for outings during this special weekend.



Heritage Days 2026: explore the Republican Guard and the Celestins district in Paris
Explore a French institution during Heritage Days: on September 19–20, 2026, the Republican Guard welcomes you to the Célestins district. [Read more]



Heritage Days 2026: The Ministry of the Armed Forces – Hôtel de Brienne Opens Its Doors
What if we visited the Ministry of the Armed Forces for the Heritage Days? As part of the new edition of the event, the Hôtel de Brienne opens its doors for exceptional tours on Saturday, September 19 and Sunday, September 20, 2026, with registration required. Don’t miss this chance to discover the ministry! [Read more]



Heritage Days 2026: visit the Cartoucherie Eco-Museum and its workers’ housing estate (95)
Heritage Days, held on 19 and 20 September 2026, will open the doors of the Cartoucherie Ecomuseum in Survilliers. It’s a great opportunity to discover its rich industrial and working-class heritage. [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 remarkable National Gendarmerie Museum
Take a behind-the-scenes look at a slice of the law-enforcement world for Heritage Days 2026: the National Gendarmerie Museum unveils a special lineup for the weekend of September 19–20, 2026. [Read more]



European Heritage Days: an exceptional tour of the Bois-Colombes air-raid shelter (92)
Attention history enthusiasts: a remarkable World War II relic awaits, offering exclusive tours. The Bois-Colombes air-raid shelter will host a special program for the 2026 Heritage Days on September 19 and 20. [Read more]



European Heritage Days 2026: the Museum of the Liberation of Paris unveils its program
For the new edition of Heritage Days, the Museum of the Liberation of Paris — General Leclerc Museum — Jean Moulin Museum invites you to free tours and activities over the weekend of September 19–20, 2026. [Read more]



The Meaux-based Great War Museum opens its doors for free during Heritage Days.
For Heritage Days, the Musée de la Grande Guerre opens its doors to visitors on Saturday, September 19 and Sunday, September 20, 2026, inviting you to discover its collections and historical treasures. Here’s what to expect this weekend. [Read more]



Crime, Games and Mysteries: Heritage Days 2026 at the Police Prefecture Museum in Paris
For Heritage Days 2026, we’re off to discover the Musée de la Préfecture de Police de Paris in the 5th arrondissement. Far from the crime dramas, you’ll encounter real artifacts, meet the professionals, and even get to try things out. Family-friendly weekend on September 19–20, 2026. [Read more]



A fun, interactive trail, workshops and tours of the École Militaire for Heritage Days 2026
The École Militaire in Paris is opening its doors in an extraordinary fashion for the 43rd edition of Heritage Days this weekend, September 19–20, 2026. Discover this year’s lineup. [Read more]



An immersive look at Val-de-Grâce in Paris during the 2026 European Heritage Days
Découvrez comment le service de santé des armées fonctionne lors des Journées du Patrimoine en vous lançant à la conquête du musée caché au cœur du Val-de-Grâce, l’ancien hôpital militaire de Paris, ce week-end des 19 et 20 septembre 2026. [Read more]



Heritage Days 2026: Weekend program at the Naval Museum of Sarcelles (Val-d’Oise)
On September 19 and 20, 2026, take part in free activities at the Naval Museum of Sarcelles to explore France’s maritime history. [Read more]



Heritage Days 2026 program at the Army Museum, Hôtel des Invalides
The European Heritage Days will unfold at the Hôtel des Invalides on September 19 and 20, 2026. The Army Museum will host free admission on both days, and, in addition, there will be new guided tours and a wide array of workshops for history enthusiasts. [Read more]



European Heritage Days 2026 at the Hôtel de Salm, Grand Chancellery of the Legion of Honour in Paris
For the 2026 Heritage Days, why not visit the Grand Chancellery? On Saturday, September 19 and Sunday, September 20, 2026, the Hôtel de Salm, seat of the Grand Chancellery of the Legion of Honour, and its museum will open their doors for a special tour as part of this 43rd edition. [Read more]
You've already been to all these places? Discover new ones with our special selection.
Heritage Days 2026: Explore Paris and Île-de-France's historic monuments.
Historic monuments of Paris and the Île-de-France region open their doors for this new edition of European Heritage Days. On Saturday, September 19 and Sunday, September 20, 2026, come discover these history-packed gems through a range of charming programs for the whole family. [Read more]
Journées du Patrimoine 2026 à Paris: discover the capital’s secret, little-known, and hidden places.
The Journées du Patrimoine return this year with an exceptional edition slated for Saturday, September 19 and Sunday, September 20, 2026. This flagship cultural event offers the chance to visit more than 1,500 sites in Paris and the Île-de-France region, including hidden or little-known spots for the general public... Embark on an adventure, off the beaten track! [Read more]
Dates and Opening Time
From September 19, 2026 to September 20, 2026
Prices
Free
Official website
journeesdupatrimoine.culture.gouv.fr