What is the story behind Moorish Castle?
The Castelo dos Mouros was built by North African Moors in the 8th-9th century to defend the strategic Serra de Sintra — a granite ridgeline overlooking the Lisbon plain and the Atlantic coast. For three centuries, it served as a military outpost in the shifting border between Moorish and Christian Iberia. In 1147, Afonso Henriques captured it during the same campaign that took São Jorge Castle in Lisbon, and the fortress gradually lost its military purpose as the Reconquista pushed south. By the 19th century, it was a romantic ruin — which is exactly what appealed to King Ferdinand II, who restored the walls and integrated the castle into the broader Pena Palace landscape. Today, walking the ramparts offers the most dramatic views in Sintra: Pena Palace perched on the neighboring summit, the town's tiled rooftops far below, and on clear days, the Atlantic coastline shimmering to the west.