The Journées du Patrimoine are once again inviting you to the weekend of September 19–20, 2026, in Paris and Île-de-France. Each year, this event, synonymous with great cultural deals and exciting discoveries, attracts enthusiasts and the curious to experience days rich in unmissable tours and family-friendly activities for the whole family!
During this exceptional weekend, our most beautiful heritage treasures open their doors to us with a special program, often free of charge. In Paris and the Île-de-France region, the most famous monuments as well as the most secretive places are taking part, and you can even take advantage of exceptional tours.
With so many outings on offer, it’s hard not to find a plan that truly matches your passion. If the medical world fascinates you, you can map out a visit program around the healthcare institutions, specialized museums, and grand institutions taking part in this 43rd edition of Heritage Days. Between the hospitals, academies, headquarters and other, more surprising venues, the world of medicine opens up to you for this exceptional weekend.
Here's a roundup of what's on in the Île-de-France region to discover these places brimming with surprising treasures. Whether from a scientific, historical or even artistic point of view, they're determined to surprise you for the Journées du Patrimoine. And don't forget to stay tuned: this guide is updated as we make announcements and discoveries.



Heritage Days 2026 at the Museum of Pathological Waxes of Saint-Louis Hospital
For the 2026 Heritage Days, Saint-Louis Hospital opens the doors to its unusually extensive moulage museum, on Saturday, September 19 and Sunday, September 20, 2026. With more than 4,800 pieces, it is the world’s largest collection of pathological wax casts. Not for the faint of heart. [Read more]



Heritage Days 2026: guided tours and an escape game at the Paris Faculty of Pharmacy
Are you passionate about science and medicine? Don’t miss the chance to visit the Faculty of Pharmacy this Saturday, September 19, 2026, as part of Heritage Days. [Read more]



Heritage Days 2026: on the hunt for Saint-Louis Hospital and its treasures
The Heritage Days in Paris invite you to discover the treasures of Saint-Louis Hospital, from its striking plaster-cast museum to its breathtaking chapel. Here’s what awaits you for the weekend of September 19–20, 2026. [Read more]



Free tours of the National Academy of Medicine for the 2026 European Heritage Days in Paris
The National Academy of Medicine is opening its doors to the public for Heritage Days 2026, on Saturday, September 19. During a free guided tour, you’ll learn about the academy’s history and mission while admiring a stunning Art Nouveau building. [Read more]



Heritage Days 2026: An exceptional visit to the National Academy of Surgery in Paris
This year, the 2026 Heritage Days will be held on September 19 and 20. An opportunity to discover venues that open their doors specifically for the event, such as the National Academy of Surgery in Paris’ 6th arrondissement. [Read more]



Heritage Days 2025 at the National Veterinary School and Fragonard Museum in Maisons-Alfort (94)
To mark the 42nd Journées du Patrimoine, the École nationale vétérinaire de Maisons-Alfort and its museum invite you to take part in free guided tours on September 20 and 21, 2025. It's the perfect time to discover the history of this unusual place. Sensitive souls are advised not to visit the Fragonard Museum. [Read more]



Heritage Days 2025: exhibition and tours at the AP-HP Museum (94)
The AP-HP Museum, located in Kremlin-Bicêtre in the Val-de-Marne, is taking part in the new Heritage Days on Saturday September 20 and Sunday September 21, 2025. [Read more]
Dates and Opening Time
From September 19, 2026 to September 20, 2026
Prices
Free