The castle is only a small part of the wall, knowing, however, that this castle was built on land offered to the Crusaders who helped conquer the region from the Moors.

It is a fortified manor house from the 15th century, rare in Portugal. The dependencies are organized around a central courtyard, with characteristics of military and residential architecture. The keep and some wall sections stand out. At the base, there is a cushioned ashlar from the Roman period. Above the portal of the castle-citadel are the coat of arms of the marquises of Alvito.

A castle built during the Romanesque period, it features elements characteristic of the period's military architecture, such as the keep crowned by battlements and a patrol path. Both its location within the territory and various documentary sources attest to its existence during this period. It is closely linked to the nearby Monastery of São Bento de Arnoia, where some Romanesque remains can be found.

Romanesque-Gothic Castle built in the early 14th century, formed by two fortified sets. The fence is square and is defended by a turret and with two entries, the Santarém port and the port of the village. The Palace of the mayors, in conjunction with the wall of the fence on the northern façade was redesigned in 1480. The clock tower has moth manuelina. In the middle of the walled enclosure is the ancient parish church, a 16th century building quite damaged.

Built in the 13th century, the castle was rebuilt in the 15th and 16th centuries by Fernão Anes, master of the Military Order of Aviz. Of the castle's six towers, only three and a few sections of the wall remain, adapted for modern construction. Highlights include the Queen's Tower or Convent Tower, the Tower of Santo António, and the Tower of São Roque.

Built in the 16th century and rebuilt in the 17th century, this quadrangular castle retains only the original walls and low turrets. It features a carved stone portal, forming a pediment with two spires and a crown. The courtyard has a central cistern without water, two abandoned cannons, and buildings all around.

Of the castle complex, the Keep stands out – almost 40 meters high – dating from the time of King Dinis, made of marble, with a twin window and a machicolated balcony surrounding it. A masterpiece of military architecture, the Tower of Beja has great historical and monumental value. Of the defensive constructions of Roman origin, only the arch of the Porta da Vila (Town Gate) and the arch of the Porta de Évora (Évora Gate) remain. The Porta da Moura (Moorish Gate) is the only vestige of the medieval fortification.

As we approach the entrance to the village, we come across its Castle, classified as a National Monument. Pedro Álvares Cabral, the most famous inhabitant of Belmonte, was born here. The fort was built in the 13th century, at the behest of D. Afonso III, and in 1466 it became the residence of the Cabral family. One of its most emblematic points is the Manueline-style window from the 16th century, from where you can enjoy a breathtaking view of the valleys and mountains that surround the village.

Circular castle facing the Tagus River, built in 1194 by Sir Afonso Pais and rebuilt in 1390 by Sir Nuno Álvares Pereira. It maintains the walls of the wall, partly battlemented and with traces of turrets. The entrance door was built in the 15th century and has a round arch. Inside the castle is the chapel of São Brás, which features a pleasant 17th century altarpiece. Belver Castle was the starting point for several actions against the Moors, and also served as support for King João I during the War of Independence.