Heritage Days 2026 in Paris: the gems to visit in the 3rd arrondissement

Published by Cécile de Sortiraparis, Rizhlaine de Sortiraparis · Photos by Cécile de Sortiraparis · Updated on June 26, 2026 at 06:12 p.m.
The 42nd edition of the European Heritage Days awaits us this weekend, September 19–20, 2026, in the Île-de-France region. Here are the gems to visit in the 3rd arrondissement of Paris!

And it's off again for another edition of Journées du Patrimoine in the Paris region ! This major cultural event gives us the opportunity to explore every nook and cranny of Paris and the Île-de-France region, with a superb program of events, visits andexceptional openings.

In the capital, a mix of well-known spots and hidden gems are ready to play along, giving Parisians, for a day or for good, the chance to live a true cultural marathon over one weekend. This year we’re celebrating the 43rd edition of the Heritage Days, from September 19 to 20, 2026. 

Looking for ideas in the 3rd arrondissement? This Parisian neighborhood, which includes the upper Marais, will also showcase its treasures for the event. Here you can dive into Parisian history at the Musée Carnavalet or pursue great inventions at the Musée des Arts et Métiers. Famous monuments and secret spots await in the 3rd arrondissement for Heritage Days. We’re taking stock of the visits and programs planned for this special weekend. By the way, remember to check this page regularly—it's updated as announcements roll in.

The visits on the schedule for the 2026 Heritage Days in Paris’s 3rd arrondissement:

Visuels musée et monument - musée Picasso terrasseVisuels musée et monument - musée Picasso terrasseVisuels musée et monument - musée Picasso terrasseVisuels musée et monument - musée Picasso terrasse European Heritage Days 2026: a visit to the Picasso Museum in Paris
The Picasso Museum opens its doors to visitors for free for a weekend, as part of Heritage Days: a can't-miss opportunity on September 19 and 20, 2026. [Read more]

Musée de la chasse et de la nature - collections permanentes et visuelsMusée de la chasse et de la nature - collections permanentes et visuelsMusée de la chasse et de la nature - collections permanentes et visuelsMusée de la chasse et de la nature - collections permanentes et visuels Heritage Days 2026 at the Museum of Hunting and Nature in Paris — the program
And how about a visit to the Museum of Hunting and Nature on September 19 and 20, 2026, for Heritage Days? On the program: free, self-guided tours of the museum and its exhibition! A wonderful discovery awaits. [Read more]

Visuel Journées du Patrimoine/Matrimoine - musée des arts et métiersVisuel Journées du Patrimoine/Matrimoine - musée des arts et métiersVisuel Journées du Patrimoine/Matrimoine - musée des arts et métiersVisuel Journées du Patrimoine/Matrimoine - musée des arts et métiers Heritage Days 2026 in Paris: free activities at the Musée des Arts et Métiers
The Museum of Arts and Crafts is taking part in Heritage Days on Saturday, September 19 and Sunday, September 20, 2026, offering a free tour and free activities that are especially popular with children. Click here to view the program! [Read more]

Le Jardin de l'Institut SuédoisLe Jardin de l'Institut SuédoisLe Jardin de l'Institut SuédoisLe Jardin de l'Institut Suédois Heritage Days 2026 at the Swedish Institute: guided tours to explore the Hôtel de Marle.
For the 43rd edition of Heritage Days, the Swedish Institute in Paris invites you to guided tours of the building that houses it: the superb Hôtel de Marle. Join us on Saturday 19 and Sunday 20 September 2026 to discover this little architectural gem! [Read more]

Visuels musée et monument - Musée Cognacq-JayVisuels musée et monument - Musée Cognacq-JayVisuels musée et monument - Musée Cognacq-JayVisuels musée et monument - Musée Cognacq-Jay Discover the Cognacq-Jay Museum, a hidden gem, during the 2026 Heritage Days in Paris.
On the occasion of the 43rd edition of Heritage Days, the Cognacq-Jay Museum, located in the heart of Paris’s 3rd arrondissement, will open its doors to the public on September 19 and 20, 2026. Come and discover this little-known gem of the capital. [Read more]

Pour fêter ses 150 ans, une fontaine Wallace fait son entrée au Musée du CarnavaletPour fêter ses 150 ans, une fontaine Wallace fait son entrée au Musée du CarnavaletPour fêter ses 150 ans, une fontaine Wallace fait son entrée au Musée du CarnavaletPour fêter ses 150 ans, une fontaine Wallace fait son entrée au Musée du Carnavalet Guided tours of the Carnavalet Museum's collections in Paris during Heritage Days 2026
The Carnavalet Museum invites you to the 43rd edition of Heritage Days, taking place over the weekend of September 19–20, 2026. On the occasion, the Museum of the History of Paris will offer guided tours designed to reveal its collections. [Read more]

Journées du Patrimoine 2025 au Musée d'AutrefoisJournées du Patrimoine 2025 au Musée d'AutrefoisJournées du Patrimoine 2025 au Musée d'AutrefoisJournées du Patrimoine 2025 au Musée d'Autrefois Heritage Days 2026: Visit the Couvent de la Merci in Paris during a special open day.
Heritage Days are back with a fresh edition slated for the weekend of September 19–20, 2026. In the 3rd arrondissement, don’t miss the special opening of the Couvent de la Merci. [Read more]

Bibliothèque centrale du conservatoire national des arts et métiersBibliothèque centrale du conservatoire national des arts et métiersBibliothèque centrale du conservatoire national des arts et métiersBibliothèque centrale du conservatoire national des arts et métiers The monks' refectory opens up for Paris's Heritage Days 2026.
It's a genuine hidden gem that's been unfairly overlooked: during Heritage Days on September 19–20, 2026, come discover the Central Library of the Conservatoire national des arts et métiers. [Read more]

L'Hôtel de Soubise, un écrin remarquable pour les Archives nationalesL'Hôtel de Soubise, un écrin remarquable pour les Archives nationalesL'Hôtel de Soubise, un écrin remarquable pour les Archives nationalesL'Hôtel de Soubise, un écrin remarquable pour les Archives nationales 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]

Practical information

Dates and Opening Time
From September 19, 2026 to September 20, 2026

× Approximate opening times: to confirm opening times, please contact the establishment.

    Prices
    Free

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