From this fortress, built at the end of the 16th century, one can view almost the entire Vila Nova de Milfontes. Originally built with a polygonal plan, with canon areas and two triangular bastions, it was damaged in seevarl ways in 1638. During the reign of D. João IV it underwent changes and its military capacity grew bigger. A model of the military mannerist architecture, it was later turned into a residence and a medieval turret with battlements was added to it. Currently, the trench and the walls are surrounded by vegetation and flowers.

Similar to the Bateria das Fontainhas but more recently build, this fortress was projected at the beginning of the 20th century by the engineering major António Augusto Nogueira de Campos.

Large stone wall rosea in the shape of a polyhedron. Has canhoteiras and bunkers that denote great simplicity and rigour. Barracks and other dependencies are organized in a set of several volumes.

Replica of the old São João Batista Fort located there, built in 1730, due to the pirate attacks on Porto Moniz. In 1998, the town's Municipal Council acquired the ruins, completely restoring it and giving it its original appearance, in order to house the Madeira Aquarium.

This fort was built around 1640 during the Restoration War. It features two bastions connected by walls. One of the walls has a staircase that leads to the upper terrace, where the lighthouse stands out due to its disproportionate size compared to the rest of the building. In the early 19th century, it underwent alterations to make it more militarily suitable.

This 17th century building is shaped like a four-pointed star, each protected by guardhouses. The vestiges of this defensive fort can be seen on Avenida Doutor Antunes Guimarães, Rampa do Castelo and Rua de Santa Catarina. It began to be built in 1638, but in 1655 it was still not completed. In 1832, during the civil war, it underwent some modifications and, in the 20th century, it was handed over to the Captaincy of the Port of Leixões, which carried out works to house its staff there.

The fortress of Nossa Senhora da Luz has a portal with pilasters and a pediment heavy denticuladas. The coat of arms of Portuguese Crown evokes the overlapping of past wars.

Historical reference and emblematic element of the city, it was built at the end of the 16th century as part of the defense system of the Mondego mouth. It has a triangular structure, a half bastion and two irregular bastions. Inside there is a small chapel dedicated to Santa Catarina de Ribamar, and a lighthouse. Currently, within its walls, there is also a tapas and cocktail restaurant.