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: The Sorbonne Chapel opens its doors in Paris
Paris' Sorbonne Chapel will exceptionally open its doors for Heritage Days on 19 and 20 September 2026. A rare chance to discover this masterpiece of classical architecture, the tomb of Cardinal Richelieu, and the history of the Sorbonne. [Read more]



Heritage Days 2026: the Arab World Institute in Paris unveils its program
The Arab World Institute participates in Heritage Days in Paris with a lineup of free activities on 19 and 20 September 2026. In the 5th arrondissement, the Arab World Institute invites you to a weekend that reveals its architecture, its collections and the cultures of the Arab world. [Read more]



Heritage Days 2026: tours of the Paris arrondissement town halls
Paris’s arrondissement town halls throw open their doors to the public on the weekend of 19–20 September 2026: explore the activities lined up for Heritage Days. [Read more]



Heritage Days 2026 in Paris: guided tours of Saint-Nicolas-du-Chardonnet Church
For the 2026 Heritage Days in Paris, head to the Left Bank to discover Saint-Nicolas du Chardonnet Church. The site’s treasures reveal why this house of worship remains one of the emblematic strongholds of active traditionalist Catholicism in Paris. See you on Saturday, September 19 and Sunday, September 20, 2026, in the 5th arrondissement to uncover its history. [Read more]



Immersion in the Heart of the Middle Ages at the Musée de Cluny for Paris’s 2026 Heritage Days
The Cluny Museum is set to take us into the heart of its medieval collections for Paris’s 2026 Heritage Days. Mark your calendars for the weekend of September 19–20, 2026 to explore the program! [Read more]



Exceptional free tour of the Panthéon for Heritage Days 2026 in Paris.
The Panthéon takes part in the 43rd Heritage Days: the monument will open its doors to the public free of charge on September 19 and 20. A great opportunity not to miss! [Read more]



Concerts and an exhibition at the Irish Cultural Centre for Heritage Days 2026
Heritage Days 2026 take place on September 19 and 20! And this year, the Irish Cultural Centre invites you to tours of the Saint-Patrick Chapel, as well as to concerts! [Read more]



Heritage Days 2026: Free tours to discover the Curie Museum in Paris
On the occasion of Heritage Days 2026, 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 that produced five Nobel laureates. Calling all fans of scientific heritage! [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]



Journées du Patrimoine 2026 à Paris : visit the prestigious Sorbonne University
For Heritage Days, the Sorbonne is staging a range of events around this historic and cultural landmark over the weekend of Saturday, September 19 and Sunday, September 20, 2026. [Read more]



Paris Heritage Days 2026: explore the history of the Sainte-Geneviève Library
For Heritage Days 2026 in Paris, the Sainte-Geneviève Library invites you to dive into its history. Discover the secrets of this treasure of the Latin Quarter this Sunday, September 20, 2026. [Read more]



Discover the hidden museum at Paris's Val-de-Grâce Military Hospital for the 2026 Heritage Days.
The Val-de-Grâce Hospital invites you to explore its Army Health Service Museum during the European Heritage Days 2026, scheduled for the weekend of September 19–20, 2026. [Read more]



What to do for the 2026 Heritage Days at the Jardin des Plantes and the National Museum of Natural History? The program
Heritage Days take over the Jardin des Plantes and the National Museum of Natural History in Paris this weekend, September 19–20, 2026, with a lineup of activities for young and old. [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]



Playful tours at the Museum of Mathematics in Paris for Heritage Days 2026
As Heritage Days 2026 return to Paris on the weekend of September 19–20, 2026, the Museum of Mathematics invites you to a playful program! [Read more]



Heritage Days 2026 in Paris: Lycée Henri IV will, exceptionally, open its doors to the public.
Henri IV High School opens its doors for Heritage Days this weekend, September 19–20, 2026, in Paris. It’s a chance to discover this iconic institution, listed as a historic monument, and its medieval treasures. [Read more]



Heritage Days 2026: The National Institute for Deaf Youth in Paris program
To mark European Heritage Days 2026, this Saturday, September 19, and Sunday, September 20, come and discover the National Institute for Deaf Youth in Paris. Check out the program for this 43rd edition! [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]
Dates and Opening Time
From September 19, 2026 to September 20, 2026
Prices
Free