By Mélanie Bienfait, heritage mediator of the CoVe. Jean-Marc Mignon, archaeologist at the archaeological service of the department of Vaucluse and Xavier Boutin, architect. All public Free without registration. Route des Florëts, chemin Saint-Côme. Park in the parking lot of Château Saint-Cosme. Organized by the CoVe - Pays d'art et d'histoire Ventoux-Comtat Venaissin