The Journées du Patrimoine are back. This year, on the weekend of September 20 and 21, 2025, the 42nd edition of the Journées du Patrimoine promises to be an absolute blast! This is your chance to conquer the town of Saint-Mammès, in Seine-et-Marne, where a vast program of visits and events awaits you.
Have you ever heard of water jousting? A popular sport practiced in a variety of ways all over France (and the world), you'll have the opportunity to attend some great competitions in June, especially near Saint-Mammès.
