The Irish are very devoted to pilgrimage. In the Golden Age of Faith the Saints of Ireland undertook Peregrinatio Pro Christo to Heaven-knew-where to bring them the Catholic Faith. It is a startlingly rare thing to make a pilgrimage to Armagh, the seat of Saint Patrick, the Apostle of Ireland, and his successor the Primate of All Ireland, and, in a sense, the spiritual heart and ecclesiastical capital of Ireland.
The present Cathedral, the National Cathedral, as Cardinal Logue called it, was built between 1840 and 1904, the medieval Cathedral having been confiscated during the 16th century. Historic images of the Cathedral can be seen here.