A century of museum history through its collections: join us to discover the evolution of the museum over the last 100 years through its collections from the major archaeological sites of the region. The visit will continue outside, in the courtyard and the first room of the castle, where we will evoke the succession of human occupations of the cliff, from the Paleolithic to the present day. Dates and times of the visits: - Saturday 16 September at 14:30 and 16:00, visits ensured by Eléonore De Castro, guide-lecturer. - Sunday 17 September at 11:00, 14:30 and 16:00, visits provided by: - Brad Gravina, engineer in charge of the collections of the ancient and middle Palaeolithic at the National Museum of Prehistory. - Aude Chevallier, curator of Heritage, in charge of the collections of paleontology-archaeozoology at the National Museum of Prehistory. - Catherine Cretin, Chief Curator of Heritage, in charge of the collections of the Upper Palaeolithic at the National Museum of Prehistory.