Built in the 17th century by command of Dom João IV, this small fortress has the royal arms and an inscription concerning its construction above the entrance. Throughout the centuries it had several occupations until it was given to the War Navy in 1947.

This 17th-century building was built in the reign of Dom Pedro II, to defend the coast from pirates attacks during the war of restoration. Strong door is surmounted by a stone with the Royal arms.

A fortress located on the beach, just a few metres away from the sea. Rebuilt in the 17th century ath the time of the Restoration Wars, it played an important role during Napoleon's invasions. It was part of the defence line in the Lima river banks and by the Atlantic Ocean.

Built by Dom João IV in 1647, this fortress belonged to the defensive system of the Tejo's inlet. Throughout the centuries it was several times occupied and adapted, gaving been a post of the fiscal guard, a centre of juvenile sailing and a youth hostel.

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 Dom 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.

Former convent surrounded by walls, transformed into a fortification in 1658. Late-Baroque and Mannerist fortress, composed of regular star plant, with four pentagonal bastions highlighted at the corners by a rectangle. Its plant is similar to the neighbor fortress of São Neutel, both built during the wars of the restoration. Currently, it is a hotel, a restaurant and a bar.

A fortress equipped with a line of eight small iron canons that once were used to defend the island.

Important work in the renewal of the military defence of the village, such as it is certified by the proximity of the castle and its wall. Fortress of irregular drawing with five bulwarks.

Fortress built in the XVII century to protect the city against pirates’ attacks, being enlarged in the XVIII century. It was used with military ends until 1992, year in which it was given to the Regional Government, which turned it into a cultural space, so that now is the Contemporary Art Museum.