The Church of Saint Nicholas, built with beautifully crafted stone ashlars, was completed at the end of the twelfth century. While it is Romanesque, several elements incorporate features of the emerging Gothic style, such as the polygonal apse that projects over the cliff to act as a defensive tower.
The main doorway, however, is characteristically Romanesque. Carved deep into the stone is a series of concentric arches that replicate the stepped archivolts typical of the most complex Romanesque portals. At its center features the chrismon—an ancient symbolic monogram representing the Holy Trinity—which can also be found on other prominent Romanesque monuments in the province.
The various windows across the facade belong to the original medieval construction, despite later modifications. The southern side door, which was converted into a window on the outside, features voussoirs beautifully carved with geometric patterns.