The Musée des Années 1930 can be found in Boulogne and it was founded in 1939 upon the initiative of Mr. Morizet and Dr. Bezançon. They gathered numerous documents and artifacts by themselves. The museum has been open to the public since 1958. The 1930's collections are especially valued, along with the history of the city, its industries (automotive and aviation), his film studies and sports venues. The museum has a collection of 450 paintings, 2,000 drawings, 800 sculptures and more important pieces of decoration and furniture.
The Musée Bouchard was established in Bouchard's study after his death in 1960, and was opened to the public between 1962-2007. Its collections, including a large figure of Apollo, are shown at the Palais de Chaillot, and more than a thousand works of other sculptures of bronze, stone, plaster and original works were later transferred to La Piscine de Roubaix Museum. According to the museum's website, the study will reopen in 2012 with a reconstruction.
The Albert Kahn Departamental Museum can be found in Boulogne Billancourt in the Ile de France. To endure the work of Albert Kahn it mainly consists of a gallery that presents temporary exhibitions as a part of the collections of the "Archives of the Planet", which has 4000 stereoscopic plates and 72,000 autochrome plates, which actually makes it the most important. It's pretty impressive, you should go take a look if you get the chance.