The Almourol Castle (Castelo de Almourol) is a picturesque medieval castle located on a small rocky island in the middle of the Tagus River, near the town of Vila Nova da Barquinha, in the Santarém District of Portugal. This stunning fortress is one of the most iconic and well-preserved examples of medieval military architecture in Portugal, dating back to the 12th century, and is a popular tourist attraction and cultural landmark in the region.

The Almourol Castle was built by the Knights Templar during the Reconquista, the Christian reconquest of the Iberian Peninsula from Muslim rule, as part of a network of defensive fortifications along the Tagus River to protect the region from Moorish invasions and attacks. The castle is situated on a small rocky islet that has been inhabited since ancient times due to its strategic location, which offers a commanding view of the surrounding landscape and a natural defensive position that made it an ideal site for a fortress.

To reach the Almourol Castle, visitors must take a short boat ride across the Tagus River from the village of Vila Nova da Barquinha to the island where the castle is located. The boat ride itself offers beautiful views of the castle and its picturesque surroundings, creating a memorable and scenic approach to this historic landmark.

The Almourol Castle is characterized by its imposing stone walls, fortified towers, and impressive battlements, which reflect the architectural styles and military strategies of the medieval period. The castle's design combines elements of Romanesque, Gothic, and Manueline architecture, with its high walls, crenellated parapets, and robust towers creating a formidable and majestic appearance that dominates the skyline of the surrounding countryside.

The interior of the Almourol Castle features a central courtyard, a cistern, and a series of underground chambers, which were used for storage, living quarters, and defense during the castle's active military service. Visitors can explore the castle's ramparts, climb its towers, and enjoy panoramic views of the Tagus River, the surrounding countryside, and the neighboring towns and villages from the top of the fortress.

In addition to its historical and architectural significance, the Almourol Castle is also surrounded by a beautiful natural landscape, with lush vegetation, scenic walking trails, and picnic areas that offer plenty of opportunities for visitors to relax, enjoy nature, and take in the stunning views of the castle and its picturesque surroundings.