aerial view of the ruins of herisson fortress of the dukes of bourbon dominate the medieval city of hérisson and aumance valley

allier ancient architecture auvergne bell tower bourbonnais building buildings castle chacent teau 039 hacopy risson clouds cloudy sky country countryside donjon dukes bourbon europe fortified france french village green herisson hilltop historic history landmark landscape low angle view medieval monument old outdoor ruined ruins rural stone wall stones structure summer sun sunshine tourism towers travel