It is the monument of greater artistic value. The origin of the building dates back to 1500, having been the target of transformations and additions until the 19th century. The cloister is from King João III time. Was cloistered monastery, the religious order of Saint Dominic and later childhood shelter.

Great Convent from 1550, closed in 1834 with the extinction of religious orders. The church is covered in 17th century tiles, which are rare in Europe. Consisting of 8 side chapels, in one of them Jerónimo da Cunha is buried. This space hosts occasional masses, choral concerts and exhibitions.

Built on the remains of the original residence of the patron saint (São João de Deus), whose foundations date back to 1607, it was extinguished in 1834 and underwent several changes that disfigured its original appearance.

Two menhirs with a mezzanine shape and one with a parallelepiped shape, with an angular shape, all fallen.

Dolmen consisting of an intact polygonal chamber, with 7 pillars, with roof. It is located on a small hill on a private estate (Monte do Pinheiro) six kilometers from Montemor-o-Novo.

On each bank of a small river, there are two similar dolmens, both in size and structure, with large chambers and monumental corridors. The structure is intact, preserving the roof and the clear corridor embedded in the burial mound's body.

Dolmen with a polygonal chamber and corridor that preserves the surrounding mound and the fractured covering slab. It has large dimensions and is very well-preserved.

Of the wall, built during the reign of King Dinis, the main section remains, defended by eleven turrets. The fortress, currently in ruins, already existing during the reign of D. Sancho I, has a rectangular plan and is protected by two towers. The Santarém and Sol gates are in good condition; The Angel Gate has some weaknesses and the location of the Évora gate and tower is unknown.

Church erected, possibly in the 14th century, of rectangular plan with coverage of two waters and barrel vault ceiling. Chapel of square plan with roof and domed cover. Already existed in 1302, when it was donated to the Chapter of the Cathedral. It was the seat of the parish with the same name, and is currently in ruins.

18TH century Church, which has an altar (Altar of souls), composed of gilded Baroque altarpiece, from the time of Dom João V, stone images of Dence, 15th century and Saint Margaret and Saint Sebastian.