Castillo de Ampudia is a majestic 15th-century fortress built between 1461 and 1488 by García López de Ayala in Palencia, Castile and León. This imposing castle features a square plan with a Gothic central courtyard and four corner towers, declaring it a Spanish National Monument. The castle's robust stone walls and distinctive silhouette dominate the landscape, offering guided tours of its grounded departments while maintaining its role as a significant medieval fortification showcasing the power of Castilian nobility.