On September 19 and 20, 2026, France will celebrate its annual European Heritage Days, an event that invites the public to explore historical and cultural sites that are usually closed to visitors. This year marks the 43rd edition of the event, which brings together thousands of locations across the country, offering a rare opportunity for people to experience places that are often not accessible to the general public. This particular edition focuses on two key themes: photographic heritage and endangered sites. The emphasis on photography highlights the role of images in preserving history, showcasing how photographs can document cultural and architectural legacies over time. Meanwhile, the focus on endangered sites draws attention to the importance of conservation, as many historical locations face threats from natural wear, urban development, or neglect. Throughout the two-day event, visitors can explore a wide range of locations, from historic buildings and museums to natural landmarks and industrial heritage sites. Many of these sites will offer guided tours, special exhibitions, and interactive activities that provide deeper insights into their significance. The event also encourages local communities to participate, with many events organized by volunteers and local heritage organizations. European Heritage Days not only promote cultural awareness but also foster a sense of shared responsibility for preserving the past. By making these sites accessible, the event aims to inspire public interest in heritage conservation and encourage people to support efforts to protect France’s diverse historical landscape for future generations.