Overview
The Castelo de São Jorge has occupied the highest hill in Lisbon for over two millennia. Iron Age Celts first fortified this summit, followed by Phoenicians, Romans, Visigoths, and Moors, each adding layers to the defenses. The Moors built the castle walls you see today during their four centuries of rule (8th-12th century), and in 1147, Afonso Henriques — Portugal's first king — seized it during the Siege of Lisbon, a pivotal moment in the Reconquista. The castle served as the royal residence until the 16th century, then fell into disuse before a major restoration in the 1940s. Today it stands as a living archaeology lesson above the Alfama district, offering the most sweeping views in Lisbon — from the Ponte 25 de Abril bridge to the Tagus estuary and across to the Cristo Rei statue.
Notable Rooms
Layered history: Without a guide, the castle looks like medieval walls — with one, you trace Celts, Romans, Moors, and Crusaders across the same stones. Archaeological site: The Moorish-era residential quarter and Phoenician-era remains beneath the castle are easily overlooked without expert context. Siege of Lisbon: The 1147 siege that birthed Portugal as a nation happened here — guides bring the battle to life. View interpretation: Guides identify landmarks visible from the ramparts and connect them to city history
Fortification History
11 towers and ramparts — Walk the full circuit of Moorish walls for changing perspectives across every quarter of Lisbon. Periscope (câmara escura) — A camera obscura in the Tower of Ulysses projects a real-time 360° image of the city onto a white dish. Archaeological site — Excavated foundations of a Moorish residential quarter, revealing daily life from the 11th century. Castle gardens — Peacocks roam freely among cork oaks, olive trees, and stone pines. Panoramic viewpoint — Arguably the best miradouro in Lisbon, covering the Ponte 25 de Abril, Alfama rooftops, and the Tagus. Permanent exhibition — Artifacts from every era of the castle's occupation, from Iron Age pottery to Moorish ceramics
When to Visit
Hours: March-October: 9 AM-9 PM | November-February: 9 AM-6 PM. Best time: Opening at 9 AM for near-empty ramparts and clear morning light. Sunset visits: Late afternoon in summer for golden hour views across the city and river. Least crowded: Weekdays in low season; weekday mornings year-round. Duration: 1.5-2 hours to explore walls, archaeological site, and gardens
Admission and Costs
Standard admission: €15. Reduced (students, seniors): €7.50. Free for Lisbon residents (with ID) and children under 12. Guided castle tour: €20-35 per person (1.5 hours, includes entry + guide). Private Alfama + Castle combo: €120-200 for up to 6 people (3-4 hours, walking tour through Alfama ending at the castle)
Tips for Visitors
Approach from Alfama: Walk uphill through Alfama to reach the castle — the route itself is a highlight. Tram 28: Stops near the castle entrance — but be ready for steep cobblestoned streets from the stop. Wear grip shoes: Stone ramparts and uneven walkways demand good footwear. Bring water: Shade is limited on the ramparts, especially in summer. Camera obscura schedule: The periscope demonstration runs on a fixed schedule — ask at the ticket office for times. Combine smartly: Visit the castle first thing in the morning, then descend through Alfama toward the Sé cathedral