Castillo de Viacamp stands majestically in the Ribagorza region of Huesca at 860 meters elevation, perched above the Noguera-Ribagorzana river valley. Dating from the 11th century with Muslim origins, it was conquered and fortified by Ramiro I to protect the southern frontier of the County of Ribagorza. The complex comprises a large cylindrical tower measuring 20 meters in height, remnants of fortified walls, and the Romanesque Church of San Esteban de Viacamp, originally dedicated to Saint Michael the Archangel. The castle's impressive silhouette dominates the plateau of Viacamp and offers sweeping valley views, standing as one of the most architecturally significant medieval structures in the region and attracting curiosity from visitors across the surrounding landscape.