LA NATIVIDAD DE ARCAS (R)
It is a Romanesque temple of transition to the Gothic constructed in the S. The XIIIth in masonry and sillarejo, with ashlars in his corners, in the apse and in the body of his south front page. It consists of a nave and presbytery separated by a great triumphal arch of half a point and a semicircular apse with a Romanesque window in the center. In the south side, attached to the wall of the presbytery there is an impressive reed-mace with a great arch and three windows, all with pointed arches, with a great stairs of stone attached to the south side In the center of the same side there is a Romanesque front page with five archivolts also that indicate the transition of the Romanesque one to the Gothic.
To see his complete description in Románico Aragonés