Former collegiate church of Santa María of Baiona Monument · Baiona, Vigo, Pontevedra A church of the second half of the 13th century, with three naves and austere Cistercian forms linked to the monastery of Oia, in the passage from Romanesque to Gothic; it was a collegiate church from 1482, by order of Bishop Diego de Muros, until 1850. Photo: José Antonio Gil Martínez (CC BY 2.0) What to see and do in Baiona