Vast Gothic radiant chancel built from 1272 to 1332, unfinished transept built at the beginning of the18th century, hardly rough-shaped nave. It is the highest Gothic chancel in the south of France (the vaults of the principal nave nearly reach 41 meters). Against the southern aisle of the cathedral, the Gothic cloister of Saint-Just and the building of “L’Annonciade” (15th century).