Sagunto Castle dominates the landscape of eastern Spain with nearly a kilometer of fortified walls stretching across a hilltop overlooking the Mediterranean. This National Monument layers nearly two thousand years of history—Iberian, Roman, medieval, and modern—creating an architectural palimpsest that reflects its role as a strategic stronghold. The fortress divides into multiple independent enclosures, with the oldest section being the Plaza de Armas, containing the remains of a Roman forum, cisterns, and columns. Visitors can explore an Epigraphic Antiquarium Centre featuring Latin, Iberian, and Hebrew stone inscriptions, as well as a 360-degree virtual tour of the Roman Forum. Free admission and an interactive audio guide make the castle accessible year-round.