 These often extend down for two stories below ground and may be very large.Oldest secular premises in the town is the ancient Pharmacy on Rue Anatole France which has been undergoing a slow but dedicated restoration of its many hidden features.Rue Chalon, the pedestrianized main shopping street was extensively rebuilt during the 18th century under the supervision of Count Blossac, Intendant of the Generalitat of Poitou.