Marialva Castle is one of the most singular ruins of Portuguese castles. The line of walls interrupted by two wickets and two gates (the gate of the Guardian Angel and the gate of Monte) hide a cluster of ruins: the Paçom Alcáçova, the Town Hall, the Jail and the Court, as well as the pillory, the cistern, the Keep, two churches and five towers.

It dates back to the 16th century and was the convent of the Third Regular Nuns of St. Francis, dedicated to Our Lady of Loreto, and also served as military barracks and hospital, until it became the Mother Church in 1810.

The tower stands out in the urban landscape, due to its vertical volumetry, and the architectural style combines the sobriety of Neoclassicism with the exoticism of the Baroque.

Located in the Casamates, it is an interactive multimedia space where the history of Portugal is reconstructed from medieval times to the contemporary era, with special emphasis on the Peninsular Wars and the siege of Almeida. It consists of 20 rooms and corridors once used for two purposes: peace and war. In times of war they served as military shelter and defence. In times of peace, it was used as a food store. It is also noted that it functioned for some years as a prison.

The Roman ruins of Vila da Fórnea are a monumental complex dating back to the 2nd century, built with various divisions, some of which are still well defined, namely olive oil and wine presses, cereal processing, iron foundry, animal stables. Also uncovered were some thermal baths, with the traditional tanks, which would allow for baths of different temperatures, as well as vestiges of the hypocaust and apoditerium which would complete the equipment of a thermal bath and various compartments related to the dwelling of the owners and their dependents.

The building dates back to the late 12th to 13th century. In Romanesque and Gothic style, and with two walled areas, this church is part of what was an important defensive landmark in fights with Castile.