To mark Paris Design Week and the Journées du Patrimoine 2025, the Hôtel de la Marine is hosting a monumental installation by designer Jérémy Pradier-Jeauneau, from September 3 to 21. From the main courtyard to the loggia, via the salons d'apparat, follow this immersive, free tour of the Hôtel de la Marine, the must-see design event of the autumn!