Dax Cathedral
At the end of the 13th century, in the midst of a period of prosperity, the Bishopric had a series of ecclesiastical buildings built, including a new cathedral built on an old Romanesque sanctuary that had become too small. This building collapsed in 1646, and the construction of the current building was built from 1656 to 1719 on Vauban's plans, and was not completely completed until 1894. Of the 13th century building, only the old gate rebuilt in the north arm remains. This portal is called the Apostles' portal.