The Monastery of Travanca impresses with its dimensions, especially the Church, built in the 13th century. Associated with the Gasco lineage, to which Egas Moniz, the nurse of D. Afonso Henriques, belonged, it constitutes one of the most powerful monastic institutes in the land of Sousa during the Middle Ages. On the exterior of the Church, which has three naves, the main portal stands out, opened in a protruding body, topped by a cornice on rectangular brackets and adorned with brackets [pedras saíntes de apoio] in the shape of bovine heads. The archivolts have dihedral tori and on their capitals are represented birds with intertwined necks, serpents, human figures, and monsters swallowing naked men. The north side portal shows a similar composition. The interior is composed of various artistic and architectural solutions from the medieval period and later. The sacristy, whose baroque spirit stands out in the chests and ceiling paintings, marks the major reforms initiated in the Modern Era. However, what stands out in the ensemble is the isolated tower, considered one of the tallest medieval towers in Portugal. Its military air is purely symbolic, highlighting its richly carved portal, whose tympanum presents an original representation of the Agnus Dei (Lamb of God), raising a cross pattée.