The essentials
Multiple French heritage sites open to public September 19-20, featuring military bunkers, restored châteaux, and restored cultural venues.
European Heritage Days on September 19-20, 2026 will feature expanded access across multiple French heritage sites, from coastal fortifications to restored châteaux and cultural institutions.
Military heritage takes focus with Atlantic Wall bunkers in Ondres opening for guided tours, providing rare public access to World War II defensive structures. Château de Champs-sur-Marne, originally constructed between 1703 and 1707, will offer special access to its eastern grounds following major renovation work. The château, which housed the Marquise de Pompadour from 1757 to 1759 and served as a diplomatic venue under Charles de Gaulle, showcases centuries of French architectural and political significance.
Cultural programming spans the country: Saint-Vincent Church in Lourdes will hold organ concerts following its 2021 restoration, while Musée de l'Hydraviation in Biscarrosse opens to visitors. Additional sites including Maison Sentex in Saint-Sever, Château de Fals, and the Chapel and fountains of Ousse-Suzan will also welcome the public during the Heritage Days weekend.
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Châteaux recovery marks completion of major preservation efforts
Château de Champs-sur-Marne underwent significant restoration following a 2006 collapse and 1999 storm damage to its park. The château's recovery, combined with recent restoration of Saint-Vincent Church's organ in 2021, demonstrates sustained commitment to heritage preservation across France's sites.
Heritage Days increase public engagement with France's diverse historical assets
The 2026 Heritage Days expand access to sites rarely or never open to the public, including Château de Fals and Maison Sentex. This year's programming connects visitors with military history, architectural heritage, and cultural institutions across coastal and inland regions.