Church Architecture of Arantzazu, Basque region. I remember it being a cold and windy November day when I first visited this site; a place of pilgrimage that I had never heard of before. Located in the Basque region of Spain, a short hour north of the medieval city of Vitoria-Gasteiz, the Sanctuary of Our Lady of Arántzazu (1955) is situated at the end of a road, just before touching the clouds and the sky.