Oppidum d'Entremont was built in the second century B.C. by a Celtic tribe, the Sayens. In 123 B.C., the Oppidum d'Entremont was seized and destroyed by the Romans. Excavations undertaken from 1946 have unearthed a protected habitat - the foundations of ancient shops, storehouses, manufacturing workshops, large buildings and a temple, which demonstrates that the Oppidum d'Entremont in the ancient times was of great importance - both for trade and for cultural life.
Artefacts, such as sculptures, vases, reliefs and other items are installed in the Granet Museum in the centre of the city of Aix-en-Provence . The Oppidum d'Entremont is open every day except Tuesday. Admission: free.