Castell de Sant Ferran, also known as Castillo de San Fernando, is a 19th-century fortification atop Monte Tossal in Alicante, built beginning in 1813 by military engineer Pablo Ordovás y Sastre to bolster regional defenses during the Peninsular War. Despite its strategic design and geometric bastions connected by curtain walls adapted to the rugged hilltop terrain, the fortress never saw active military combat. The site offers commanding views of the Mediterranean Sea and Alicante's picturesque coastline, hosts cultural exhibitions and guided tours exploring its complex history, and remains a popular destination for photography enthusiasts and history buffs seeking perspectives on Spain's 19th-century military architecture.