A large park with several walking areas and pleasant corners inviting relaxation. This leisure space in Oeiras features a playground and several cafes.

A well-maintained park with a large grassy area and a variety of trees, including olive and palm trees. This space offers walking, leisure, and relaxation areas.

Founded in the 19th century, this aquarium features 93 aquariums with thousands of different species. Here you'll find Atlantic, tropical, and freshwater marine fauna. Highlights include the collections of stuffed fish and seashells, as well as a collection of King Carlos's fish. It opened in 1898 to commemorate the fourth centenary of the discovery of the sea route to India.

Museum located within the Barcarena Gunpowder Factory. It documents the methods used to manufacture black powder and the energy sources used throughout the factory's approximately 500-year history. Its collection is divided into Science/Technology, History, Military, and Industry categories.

Viewpoint that reveals the Alentejo plains.

This museum is located in the premises of a former olive mill. The exhibits come from donations and collections made in the municipality of Aljustrel, as well as the acquisition of an ethnographic collection amassed by a farmer from Ervidel.

The 25 de Abril Garden features a playground, flowerbeds, and lush, varied vegetation. It's a pleasant and refreshing place to enjoy leisure time.

Integrated into the Sado Basin (Ribeira do Roxo), it has piers, anchorages, and access ramps. It allows for the practice of sports with special needs. Located in a flat landscape, it is a favorable location for birdwatching, particularly ducks, raptors, and waders.

The museum features a room that recreates the office of Soares Victor, an illustrious native of the region, and the pitchers used by Francisco Manuel Bartolomeu, the last water carrier of Messejana. It also features reconstructions of parts of typical Alentejo homes, such as the kitchen, pantry, bedroom, and sewing room.

The Church of Our Lady of the Assumption, with its Baroque architecture and longitudinal layout, features two bell towers and continues to be one of the main attractions of the village of Messejana.