All that remains of the old castle is the pointed door and some sections of ruined wall, located around 400 meters above sea level. Initially built in the 13th century, the castle was heavily damaged in the 17th century.

In the heart of the town, in a large square, stands this imposing medieval castle, with a quadrangular plan and protected by cylindrical cubes, crowned with battlements, Gothic portals and a tall square keep. This, around 44 meters high, has a hall with a barrel-vaulted ceiling. At the entrance to the fortress, an armored marble tombstone inscribes the record of the castle's foundation, in 1359, by King Pedro I. At that time it was constituted as a defensive articulation with Estremoz, Fronteira, Évora Monte, Avis, Alter Pedroso, Marvão and Portalegre. King João I, Master of Avis, made Nuno Álvares Pereira …

Castle ordered to be built by Álvaro Gonçalves Pereira in 1350, having undergone several modifications in the following centuries. This castle was part of a vast line of fortresses and watchtowers that protected the much attacked banks of the Tagus River. Its architectural design indicates a function aimed at the protection and refuge of populations. Made of dressed granite, it is an important symbol of Portuguese military architecture of the time. Located in a privileged location, on the banks of the Tagus River, it has a good panoramic view. It is shaped like a quadrilateral and is flanked by four …

Ruins of the walled town remain from the castle of Carrazeda de Ansiães, including the S. Francisco Door, the Fonte Vedra Door, the S. João and the S. Salvador Door, flanked by two towers, and the Keep. Inside the walls there are remains of buildings, including the Romanesque church of S. Salvador.

Ancient medieval fortification located at an altitude of 1033 meters. Currently, almost in ruins, it retains an enclosure delimited by walls and two doors. The Porta do Sapo (Frog Door) stands out. At the site of the primitive rock fortification, there are traces of prehistoric and Iron Age occupations.

Castle where you can find traces from the Bronze end to the late Roman era. Considered one of the most important and powerful fortresses of medieval times, consists of three lines of walls (probably from the iron age) surrounding the town, and inside the main enclosure by a medieval castle donjon, with traces of walls, remains, perhaps, the town mayor.

Old Castle belonging to the order of the Templars, built in the 13th century. This just leaves a section of the castle wall and sidewalk access to the highest point.

Of the wall, built during the reign of King Dinis, the main section remains, defended by eleven turrets. The fortress, currently in ruins, already existing during the reign of D. Sancho I, has a rectangular plan and is protected by two towers. The Santarém and Sol gates are in good condition; The Angel Gate has some weaknesses and the location of the Évora gate and tower is unknown.

The castle is the largest medieval fortress on the Mondego line and one of the largest in the country. Its current appearance is due to a complete renovation carried out in 1331. At this time, a Palace was built for the princesses, a building that was successively transformed until the Manueline period, the date of the last known renovation. The Keep Tower also dates from this campaign by King Afonso IV, topped by pentagonal battlements, with the upper floor surrounded by boulders and elongated corbels. Inside, the Church of Santa Maria da Alcáçova is preserved, a Gothic temple from the …