Castillo de Coria is a pentagonal keep fortress constructed between 1473 and 1478 by master builder Juan Carrera for García Álvarez de Toledo, Duke of Alba de Tormes. Located in Cáceres, Extremadura, this 15th-century castle stands as an outpost of the city's ancient fortifications, built atop reformed Roman defensive structures. The five-story tower features a crenellated terrace and distinctive semi-circular defensive tower, earning its designation as a Cultural Heritage site in 1988.