Want to step into the shoes of an archaeologist for a weekend—care to join? This is the experience you can live during the 43rd edition of Heritage Days in the Île-de-France region. Indeed, archaeological sites in Île-de-France invite you to enjoy visits that are not just special but truly exceptional, right at the heart of dig sites that trace the region's past.
The European Heritage Days are a major cultural event, offering the general public the chance to rediscover the essential and little-known treasures that make up our heritage. Held every year on the third weekend in September, they invite us to enjoy free visits andexceptional openings at the heart of historic monuments,religious buildings, museums, castles, ministries,embassies,hospitals and other fascinating places.
During the weekend, Parisians and visitors alike can enjoy free access to emblematic sites such as the Palais de l'Élysée, the Senate, theHôtel de Ville, and many others. A wide range of activities are also on offer, including guided tours, workshops, exhibitions and other events. Historic districts, major culturalinstitutions and unusual places reveal their secrets!
Less familiar, this event also offers a chance to discover archaeological sites, excavation sites, and other places dedicated to unveiling the remnants of the Île-de-France region. Set off to explore these unique and fascinating sites that reveal their secrets to the public during the Heritage Days, whose 43rd edition is scheduled for this weekend of 19 and 20 September 2026.



Heritage Days 2026 in Pontoise (95): all the visits you shouldn’t miss
During Heritage Days 2026, Pontoise reveals its rich artistic and medieval heritage over the weekend of September 19–20. Discover the treasures of this city of painters and join in unique cultural activities! [Read more]



Heritage Days 2026: visit the archaeological dig site in Provins (77)
During the European Heritage Days, on 19 and 20 September 2026, head to the Provins archaeological dig site and uncover the treasures of the past in the Seine-et-Marne department. [Read more]



European Heritage Days 2026 at the Château de Saint-Germain-en-Laye – National Archaeology Museum (78), program
The Château de Saint-Germain-en-Laye is taking part in the 2026 Heritage Days. On the program for Saturday, September 19 and Sunday, September 20, guided tours of the château and the National Archaeology Museum, and many other activities to boot. [Read more]



Heritage Days 2026: explore the archaeological site in the town of Pincevent (77)
Heritage Days are returning to Paris and Île-de-France on Saturday, September 19 and Sunday, September 20, 2026. In Pincevent, in Seine-et-Marne, explore the local archaeological site with a special program. [Read more]



A Merovingian-era immersion at the Val d'Oise Archaeological Museum for Heritage Days 2026
On the occasion of Heritage Days, the Val-d'Oise Archaeological Museum invites you to discover its program for the weekend of September 19 and 20, 2026. And what if we set off to explore the fascinating adventures of archaeological heritage? [Read more]



Heritage Days 2026: a packed lineup of activities at the Archéosite, in Haute-Île Park (93)
Heritage Days are back on the weekend of September 19–20, 2026. Attention to archaeology buffs and dig enthusiasts: the Archéosite of Haute-Île Park in Neuilly-sur-Marne (93) is opening its doors to you! [Read more]



Heritage Days 2026: this weekend’s lineup at Archéa, the archaeological museum in Louvres (95)
For Heritage Days, Archéa, the archaeology museum in Pays de France, based in Louvres in Val-d'Oise (95), invites you to special tours on Saturday, September 19 and Sunday, September 20, 2026. Here’s the program for the 43rd edition! [Read more]



Heritage Days 2025: visit the Orville archaeological site in Louvres (95)
On the weekend of September 20 and 21, 2025, many cultural and historical sites will be opening their doors for the European Heritage Days. In Louvres (95), the Orville archaeological site opens its doors to the public for the occasion. [Read more]
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Dates and Opening Time
From September 19, 2026 to September 20, 2026
Prices
Free