360° panorama by Santiago Ribas - 360portugal.
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It was ordered to be erected in 1641 by El-Rei D. Jo~ao IV, after the restoration, with a view to the defense of the city of Elvas and the Kingdom. For its construction, the hill of Santa Luzia was chosen because it is a place that, when occupied by the enemy, could put the integrity of the city at risk. It has a rectangular plan with pentagonal bastions at the vertices, in the Vauban style. The bastions are invoked by Santo Ant'onio, Santa Isabel, S~ao Pedro and Nossa Senhora da Conceic~ao, with guardhouses at the projecting angles. On the fronts facing east and south, there are two revelins named Badajoz and Poterna respectively

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