The Fortress San João Baptista da Foz do Douro was built in the late sixteenth century to better protect the coast and the mouth of the Douro River. The monument is occupied today by the Regional Delegation of the Institute of National Defense. It is a fine example of military architecture. The original basic structure was enhanced with more recent bulwarks. The Lawn Tennis Club da Foz is located at the foot of the Fort.
Visits to the Fort are free on weekdays between 9h and 17h30. There are no official guided tours, but if you are part of a large group, it is advisable to contact the Fort ahead of time to ensure that the visit does not disturb its activities.
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.