Heritage Days 2026 at Paris's courts and judicial institutions

It's a tradition we love, and for good reason: over a weekend, thousands of cultural, religious, and historical sites, institutions, and regional curiosities open their doors to the public for free. With the many activities planned at these venues, it's a chance to rediscover a place you already adore or to explore new ones. We’re talking, of course, about the Journées du Patrimoine, which return on September 19 and 20, 2026 for a 43rd edition.

Museums, gardens, department stores, private workshops, railway stations, ministries: during this exceptional weekend, you can visit (almost) everything! Yes, even the courts and places of justice open their doors to you for special tours.

If you're fascinated by this world, now's the time to immerse yourself in a world of law andorder. In Paris and Île-de-France, several institutions are waiting to welcome you during the Journées du Patrimoine. Please note that some sites can only be visited with a reservation: please consult the programs below.

Heritage Days in the Judiciary: The Program

Heritage Days 2026: step behind the scenes at the Paris Judicial Court
For the 2026 Heritage Days, the Paris Judicial Court opens the doors to its Renzo Piano–designed tower. A rare chance to explore this contemporary architectural masterpiece rising 160 meters, its sunlit grand halls, and the inner workings of Parisian justice in the 17th arrondissement. [Read more]

Heritage Days 2026 in Paris: the Ministry of Justice opens its doors to the public
On the occasion of Heritage Days, the Ministry of Justice opens the doors of the Hôtel de Bourvallais to us on Saturday, 19 September and Sunday, 20 September 2026. During a rare, self-guided visit, you can discover the office of the Keeper of the Seals. [Read more]

European Heritage Days 2025 in Versailles (78): the schedule of activities and places to visit
Les Journées du Patrimoine are back on September 19 and 20, 2026, inviting us to discover the riches of our heritage. We head to Versailles, in Yvelines, to make the most of this edition’s highlights with tours of the Palace of Versailles, as well as other institutions on an exceptional lineup. [Read more]

Heritage Days 2026 at the Police Prefecture Museum, into the world of investigators
For the 2026 Heritage Days, we’re heading to the Musée de la Préfecture de Police in Paris’s 5th arrondissement. Far from the TV crime dramas, you’ll see real artifacts and hear experts speak in a conference format. Bring the family for Saturday, September 19 and Sunday, September 20, 2026, with a special program! [Read more]

Heritage Days 2026: Explore the Paris Court of Appeal on Île de la Cité
Take advantage of Heritage Days to visit the Court of Appeal of Paris, housed in the Palais de Justice. Meet on September 19, 2026 for a stroll to the heart of the French judicial system. [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: Visit the Senate — Luxembourg Palace in Paris
The Senate is taking part in Paris’s 2026 Heritage Days edition. Take advantage of the weekend of September 19–20 to explore the Palais du Luxembourg, the Petit Luxembourg, and the greenhouses of the Jardin du Luxembourg. An exceptional, must-see opening! [Read more]

Heritage Days 2026 at the Paris Court of Appeal — Hôtel de Beauvais
For Heritage Days 2026, set off to discover the Hôtel de Beauvais, home to the Paris Administrative Court of Appeal since 2003. Built in 1654 for Catherine de Beauvais, the listed monument overflows with trompe l’oeil effects and crafted symmetry. Mark your calendar for the weekend of September 19–20, 2026, for this exceptional opening not to be missed. [Read more]

Heritage Days 2026: a behind-the-scenes tour of the Administrative Court - Hôtel d'Aumont
Heritage Days, returning on September 19 and 20, 2026, invite you to discover a Parisian jewel: the Tribunal Administratif de Paris, housed in the iconic Hôtel d’Aumont. Delve into the history of this exceptional site and explore the rooms of this 17th‑century building on an exceptional visit! [Read more]

Heritage Days 2026: Tour of the National Assembly, registration required
On the occasion of Heritage Days in Paris, the National Assembly will open its doors on Saturday, 19 and Sunday, 20 September 2026. On the program: self-guided tours of the Palais Bourbon and the Hôtel de Lassay. Note: these tours are available by registration only. [Read more]

The Heritage Days don't stop there! Don't miss out on the many themed tours on offer all weekend long.

Heritage Days 2026: Museums, Hospitals and Medical Institutions in and around Paris
Heritage Days arrive in Paris and Île-de-France this weekend, September 19–20, 2026. Calling all medical enthusiasts: here are venues whose programs are sure to appeal to you! Discover the hospitals and medical institutions that are opening their doors for this exceptional cultural weekend. [Read more]

Heritage Days 2026 in Paris and ÎDF: uncover the secrets of craftsmanship and know-how
Heritage Days sweep into Paris and Île-de-France on the weekend of September 19–20, 2026. Fancy taking this chance to dive into the heart of local craftsmanship and the savoir-faire of the Île-de-France region? Here are the visits you won’t want to miss in the Paris area. [Read more]