The Journées Européennes du Patrimoine (European Heritage Days) on September 20-21, 2025, offer a unique opportunity to explore historic and often inaccessible sites across Paris and the Île-de-France region for free. Visitors can discover museums, private mansions, emblematic institutions, and unusual places, many of which remain closed the rest of the year. This event encourages curiosity and immersion in history through diverse and engaging experiences.

In Seine-et-Marne, the Château Arribas in Condé-Sainte-Libiaire opens its gates for the occasion, showcasing its rich history dating back to the 13th century alongside the artistry of glassblowers from Arribas France, official glass supplier to Disneyland Paris. The château’s Heritage Days program includes a medieval show, archery, a craft market, a horse show, a concert, and a vintage car exhibition, offering visitors a vibrant blend of culture, history, and entertainment.