Don't hesitate to visit the exhibition retracing the various archaeological discoveries from the site of Usseau (Merovingian cemetery) as well as the incredible history of the Olbreuse family. Pierre-Henri Mitard was a historian who was very involved in the historical research related to the discoveries of the end of the 20th and beginning of the 21st century. The site is open on Wednesday and Friday from 3:00 pm to 6:00 pm and on Saturday from 10:00 am to 12:30 pm.