The Elvas Fortifications are a series of military structures located in the town of Elvas, Portugal. Built primarily in the 16th and 17th centuries, these fortifications were designed to protect the town from invasions, particularly during the Iberian Union and the Peninsular War. The complex includes walls, bastions, and a star-shaped layout, showcasing advanced military architecture of the time. Recognized as a UNESCO World Heritage Site, the Elvas Fortifications are notable for their impressive size and strategic design. They encompass various defensive elements, such as the Fort of Graça and the Fort of Santa Luzia, which played crucial roles in the region's military history.