
Fuerte Carlista de Cullera is a 19th-century fortification built during the First Carlist War (1836–1839) as part of Cullera's defensive framework, constructed by Isabelino forces on the municipality's highest promontory. The rectangular stone and brick structure features quadrangular enclosures with semicircular towers and numerous gun ports designed to confront Carlist threats with rifle and artillery fire. From the fort's elevated position, visitors can view panoramas of Cullera's north and south coasts, the old city, surrounding farmlands with rice fields and orange groves, and distant towns of Sueca and Favara. Today the ruins provide a tangible connection to the regional conflicts that shaped 19th-century Spanish history.