It is located on the ground floor of Rohan Palace. This museum includes two sections, the first section is the luxurious apartments of the Cardinals of Rohan, which are decorated with plaster, frescoes, tapestries, paintings on drapery, chandeliers, a wonderful wooden furniture collection, etc. The second section is collections of decorative arts in Strasbourg in the early French period, which focus mainly on the history of applied arts. in Strasbourg in the eighteenth century.