For this 42nd edition of the Journées du Patrimoine, the Archives Nationales de Paris will be opening its doors free of charge on Saturday September 20 and Sunday September 21, 2025, with tours of its private mansion and exhibitions.
The Archives départementales de Paris will be taking part in the Journées du Patrimoine (Heritage Days) on Saturday 20 and Sunday 21 September 2025, giving us the chance to take a look behind the scenes and discover the history of Paris from a whole new angle!