Château de Mauléon was first built in the 11th century. The wooden building was replaced in the 13th century by the strongest castle of area in a strategic location on the road to Spain. Later it was conquered by English army. In 1642 the castle is demolished by order of Louis XIII. In 1648 a partial reconstruction was organized but the castle was finally left abandoned. During the French Revolution it was a prison.
Redipuglia is the largest Italian Military Sacrarium. It rises up on the western front of the Monte Sei Busi, which, in the First World War was bitterly fought after because, although it was not very high, from its summit it allowed an ample range of access from the West to the first steps of the Karstic table area.
The monumental staircase on which the remains of one hundred thousand fallen soldiers are lined up and which has at its base the monolith of the Duke of Aosta, who was the commanding officer of the third Brigade, and gives an image of a military grouping in the field of a Great Unity with its Commanding Officer at the front. The mortal remains of 100,187 fallen soldiers lie here, 39,857 of them identified and 60,330 unknown.