The Caia Dam has the largest reservoir of Portalegre district, extending from the municipalities of Arronches, Campo Maior and Elvas.

It is a mixed dam, with concrete in the deepest part of the valley and embankment on the left bank of the river.

Located in rugged terrain marked by extensive olive groves.

The dam of Caia has good conditions for the practice of various sports and leisure activities.

In 1570 the church became the seat of the diocese of Elvas, afterwards becoming  the cathedral . In the 17th and 18th centuries were held numerous stylistic changes that have enriched the interior. During the time of bishop D. Lawrence of Lancaster (1759-1780) the Cathedral won several altars in Estremoz marble, like the one of the main chapel held by José Francisco de Abreu. Also at that time the organ was carved with gilt a work assigned to the Italian Pascoal Caetano Lodovini. Noteworthy is also the fitted room, built in the 17th century.

The diocese of Elvas was abolished in 1881, ceasing the modifications in the temple.

During the decade of 2000  it has undergone a major restoration intervention.

Get Back view of the Arc of Miradeiro – the building consists of a straight inlet port in turn flanked by slightly protruding and two solid shafts, quadrangular shape.

Built with granite stones.

The walls had the beginning of its construction in the reign of Sancho II, having been made between the 17th and 19th centuries. They have an area of ​​300 hectares and a perimeter ranging from eight to six miles, the largest system bulwark fortifications of the world.

Inside the walls, the city includes large barracks and other military buildings, churches and monasteries. While Elvas vestiges dating back to the 10th century, its fortifications dates from the time of Portugal´s  Restoration of Independence from in 1640.

The fortifications were designed by the Dutch Jesuit priest John Piscásio Cosmander and represent the best example of military fortifications of the Dutch school that survived to the present day. In the complex is included the Amoreira Aqueduct, which was intended to allow to resist  prolonged sieges.

In a dominant position on the so-called Mount of Graça, was part of the defense of Square-strong Elvas and City – Border Headquarters of Elvas and its Fortifications – rated from the day June 30, 2012 as World Heritage by UNESCO.

The good strategic position of the place became evident during the War of Restoration, when the Spanish troops occupied the site during the siege of the city of Elvas in the year 1658 that preceded to the Battle of Elvas lines in January 14, 1659.

In 2014, the Fort Our Lady of Graça was part of a new project of the Ministry of National Defense, created with the support of Turismo de Portugal, called Military Tourism, presenting historical itineraries based on Portuguese heroes.

The Fort of Our Lady of Grace, officially termed as Fort Conde de Lippe is  located in the parish of the Alcáçova, about a mile north of the city of Elvas, Portalegre District.

Retaken by the Moors , returned to Portuguese hands in 1220 only to fall again into the possession of the Moors. Between  1226-29  finally fell into Portuguese hands, under the reign of Sancho II (1223-1248), which granted it a Charter (May 1229) and also began the  reconstruction/strengthening of its defenses.

Has 8.5 kilometers long with 843 arches, more than five arcades and towers that rise up to 31 meters high, is considered the largest aqueduct of the Iberian peninsula.

In 1498, the only source of drinking water  in Elvas was the a well that was a legacy of the Arabic occupation. During the 15th Century it was not enough due to the population  increase.

That same year, King D. Manuel authorized a tax to help improve water problems and maintain the medieval well.  But did not  help at all and emerged the idea to build the aqueduct from Amoreira to Elvas.

Its construction took place from 1529 until the date of its opening on June 23, 1622.

Designed and directed only by Portuguese (the architects of Casa Real Francisco Arruda, Afonso Alvares and Diogo Marques) and erected only by Elvenses (people from Elvas) is an unique work of its kind in size, grandeur, beauty and elegance.

The Aqueduct Amoreira is  located in São Brás and São Lourenço, Elvas municipality, Portalegre District.