The Castle of Elvas is a historic fortress located in the town of Elvas, Portugal. Built in the 16th century, it was designed to protect the region from invasions, particularly during the Iberian Union and the Portuguese Restoration War. The castle features impressive walls and bastions, showcasing the military architecture of its time. This UNESCO World Heritage site is part of the larger Elvas Fortifications, which include various defensive structures. The castle's strategic position on a hill offers stunning views of the surrounding landscape, making it a popular destination for tourists and history enthusiasts alike.