Castelsardo Castle, officially known as the Castle of the Doria, is the dominant landmark of the medieval town of Castelsardo on the northern coast of Sardinia, Italy. Perched high on a rocky promontory overlooking the Gulf of Asinara, the castle offers sweeping sea views and a powerful sense of history. Its thick stone walls, towers, and elevated position make it one of the most atmospheric castles on the island.

The castle was built in the 12th century by the powerful Doria family of Genoa to control the coastline and defend against invasions. Originally called Castel Genovese, the settlement later became Castelsardo. Over the centuries, the fortress changed hands between Genoese, Aragonese, and Spanish rulers, each leaving traces on the town below. Today, the castle houses the Museum of Mediterranean Weaving, preserving both the structure and local traditions.

Interesting Facts
1. The castle was strategically positioned to monitor maritime traffic in the Gulf of Asinara.
2. It is one of the best-preserved medieval fortresses in Sardinia.
3. The Museum of Mediterranean Weaving inside the castle showcases traditional Sardinian basketry.
4. From the castle walls, visitors can see Corsica on clear days.
5. The surrounding old town retains its medieval street layout with narrow, winding alleys.
6. The castle played a defensive role against pirate raids during the Middle Ages.

Visiting Tips
1. Visit in the late afternoon for cooler temperatures and golden-hour views over the sea.
2. Wear comfortable shoes, as the climb through the old town is steep and cobbled.
3. Explore the historic center below the castle before or after your visit.
4. Allow time to visit the museum to better understand local culture and history.
5. Bring a camera for panoramic coastal views from the ramparts.
6. Combine your visit with nearby beaches or coastal viewpoints around Castelsardo.