Castelo de Marvão is a medieval castle located in the Alentejo region of Portugal. Perched on a high hill, it offers stunning views of the surrounding landscape. The castle was built in the 13th century and played a significant role in the defense against invasions, particularly during the Reconquista. The castle features well-preserved walls, towers, and a keep, showcasing the architectural style of its time. Visitors can explore the narrow streets of the nearby village, which is known for its charming whitewashed houses and historical significance. The site is a popular destination for tourists and history enthusiasts alike.