Maisons-Laffitte's Caves du Nord, a listed historic monument designed by François Mansart, is about to reopen after centuries of silence. Witness to the royal hunts of Louis XIV and recently restored after years of work, they offer a plunge into the heart of Maisons-Laffitte's history. During the Journées du Patrimoine 2025, the public will be able to discover these hidden treasures on Sunday, September 21.