When the Journées du Patrimoine come to Paris, it's a weekend of cultural highlights not to be missed! Just imagine: free visits to some of the capital's most beautiful treasures, exceptional openings of places usually closed to the public, entertainment for young and old... that's what's in store for us on this occasion. And in the 5th arrondissement of Paris, it's time to take advantage of the opportunity to discover the many treasures awaiting us in this historic district with its old-world charm.
Yes, the 5th arrondissement is one of the oldest in Paris, and home to the Latin Quarter. Here, you're in the Mecca of teaching and scientific research - and not only that! From antiquity to the present day, the 5th arrondissement has been at the crossroads of history.
From the Arènes de Lutèce to the Sorbonne, via the Panthéon and the Jardin des Plantes, this quarter is rich in places where passions are born, and they’re taking part in the Journées du Patrimoine by unveiling their backstage and secrets through a special program. For the curious and craving discovery, here are the outings awaiting you for the occasion in the 5e arrondissement this weekend of September 19 and 20, 2026.



Heritage Days 2026 at the Grand Mosque of Paris: the weekend program
The Grand Mosque of Paris invites you to the Heritage Days weekend of 19–20 September 2026, unveiling a special program. A chance to immerse yourself in the heart of this bucolic, transportive setting. [Read more]



Heritage Days 2026: The program at Paris’s arrondissement town halls
The Paris arrondissement town halls open their doors to us on the weekend of September 19–20, 2026: discover the activities planned for this new edition of the Journées du Patrimoine. [Read more]



Heritage Days 2026 in Paris: rediscover the Saint-Michel Fountain in the Latin Quarter
It's an iconic backdrop for Paris and the Latin Quarter: the Saint-Michel Fountain, freshly restored, will reveal its secrets to you on Saturday, September 19, 2026, for the 43rd edition of Heritage Days. [Read more]



Heritage Days 2026: tours and activities at the Arab World Institute in Paris
Architecture, collections and cultures of the Arab world take center stage at the Institut du Monde Arabe for Heritage Days on 19 and 20 September 2026. In Paris, the IMA is offering a free program to explore its spaces and riches from a new perspective. [Read more]



Heritage Days 2026: what secrets does the Sorbonne Chapel hide in the Latin Quarter?
Few visitors get the chance to step inside the Sorbonne Chapel. Heritage Days will exceptionally open this 5th‑arrondissement landmark, with its monumental dome, the history of the university and Richelieu’s memory, on 19 and 20 September 2026. [Read more]



Journées du Patrimoine 2026 à Paris : découvrez l'Église Saint-Nicolas-du-Chardonnet
Heritage Days 2026 in Paris: Discover Saint-Nicolas-du-Chardonnet Church
For Paris’ Heritage Days 2026, head to the Left Bank to discover Saint-Nicolas du Chardonnet Church. Visitors will marvel at the treasures of this worship site, which today remains one of the emblematic strongholds of active traditionalist Catholicism in Paris. Join us the weekend of September 19–20, 2026 in the 5th arrondissement to uncover its history. [Read more]



Heritage Days 2026: Cluny Museum unveils its Middle Ages–focused program
Discover free access to the Cluny Museum and its medieval-themed parcours during the 2026 Heritage Days in Paris and Île-de-France, on the weekend of September 19–20, 2026. [Read more]



Special free visit to the Panthéon for Heritage Days 2026
The Panthéon invites itself to the 43rd Heritage Days: the monument will open its doors for free on September 19 and 20, 2026. A must-see in Paris! [Read more]



Concerts and Exhibition at the Irish Cultural Centre: the Heritage Days 2026 lineup
Heritage Days 2026 take place on September 19 and 20! This year, the Irish Cultural Centre invites you to guided tours of the Saint-Patrick Chapel, as well as concerts. Discover the weekend’s detailed program. [Read more]



European Heritage Days 2026 in Paris: visit the little-known museum dedicated to the Curie family
Ahead of the new edition of Heritage Days, the Curie Museum opens its doors for the entire weekend of September 19–20, 2026, offering a deep dive into the history of the family with five Nobel Prizes. Attention, lovers of scientific heritage! [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]



European Heritage Days 2026: discover the prestigious Sorbonne University in Paris
For Heritage Days, the Sorbonne will host a range of events around this historic and cultural monument over the weekend of September 19–20, 2026. [Read more]



Heritage Days 2026 in Paris: visit the Sainte-Geneviève Library, a listed historic monument.
For the 43rd edition of Heritage Days in Paris, the Sainte-Geneviève Library invites you to delve into its history. Discover the secrets of this Latin Quarter treasure this Sunday, September 20, 2026. [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]



Weekend of events at the Jardin des Plantes and its Natural History Museum for the 2026 Heritage Days.
A date with the heart of wildlife and flora awaits you for Heritage Days 2026 in Paris. Here is the program from the National Museum of Natural History and the Jardin des Plantes for this weekend of September 19–20, 2026. [Read more]



Journées du Patrimoine 2026 à Paris : embark on a journey to explore the Collège de France
For Heritage Days 2026 in Paris, the Collège de France invites you to explore two millennia of history through guided tours offered on the weekend of September 19–20, 2026. [Read more]



European Heritage Days 2026: Maison Poincaré, Paris’s Mathematics Museum
The Maison Poincaré aims to help you fall in love with math this Saturday, September 19, 2026, with a range of activities organized for Heritage Days. Here’s the program for you. [Read more]



Heritage Days 2026 in Paris: Henri IV High School to open its doors for a special occasion
Le lycée Henri IV unveils its medieval treasures for Heritage Days this weekend, September 19–20, 2026, in Paris. Here’s the program! [Read more]



Heritage Days 2026: the program at Paris's National Institute for Deaf Children
For Heritage Days 2026, set off to discover the National Institute for Deaf Youth in Paris. Here’s what this 43rd edition has in store, taking place on Saturday, September 19 and Sunday, September 20. [Read more]



European Heritage Days 2026 in Paris, the program at Sorbonne University — Pierre and Marie Curie Campus
For Heritage Days 2026, on September 19 and 20, 2026, we head to Sorbonne University, at the Pierre and Marie Curie Campus, to uncover the behind-the-scenes of this Parisian institution. [Read more]
Dates and Opening Time
From September 19, 2026 to September 20, 2026
Prices
Free