This building originated from an old mosque, whose minaret has been converted into a bell tower. Columns with inverted truncated pyramidal capitals, of Byzantine influence, are rare in Portugal. This church houses a valuable sacred treasure, comprising vestments from the 16th to 18th centuries and silver religious objects.

Megalithic monuments consisting of two menhirs situated relatively close to each other. It is a monolith carved from a block of greywacke, dark gray in color, with a brown patinated surface. It has a star-like appearance, an ellipsoidal cross-section, and measures a little over three meters in height, making it the largest example of greywacke known to date in Portugal. Everything indicates that these menhirs were built in the second half of the fourth millennium BC. The site is surrounded by a net, so it can only be visited from the outside.

A set of sculptures scattered throughout the riverside area of Alcoutim depicting various scenes from the activities of the smugglers who inhabited the region in former times.

Tile panel depicting the town's traditional activities, by Carlos Luz, consisting of 31 panels that tell and preserve the stories of Alcoutim.

It overlooks the river and, according to archaeological excavations, was inhabited during the Iron Age and early Roman occupation. Built in the 14th century as a border defense, it underwent renovations in the 17th century. Inside, there is a small museum displaying archaeological finds and remains of buildings discovered during the excavations.

The dam consists of a plant with rectilinear wall 3 meters high and a thickness of the same dimension, with buttresses. Although initially have about 50 metres long, currently retains only a section of the dam about 40 meters long and 6 buttresses. About 100 metres downstream, the archaeologist Estácio da Veiga excavated a set of graves, a village and a possible Temple. Are classified as Property in the public interest.

The CHALCOLITHIC settlement where you can distinguish three types of structure: a "defensive" built by a wall, with a general ellipsoid and probably leaving him, three hollow towers, one of which is very well preserved; A "housing estate", including three huts and also functional areas divided into two units, the first related to weaving and the second with the kitchen.