Roman amphitheater in Mérida

An amphitheater is an open-air venue used for entertainment and performances. The term derives from the ancient Greek ἀμφιθέατρον (amphitheatron), from ἀμφί (amphi), meaning "on both sides" or "around" and (théātron), meaning "place for viewing".

View from the walls in Evoramonte

Evoramonte is a parish in the municipality of Estremoz. It has the alternative name of Santa Maria. It was part of the heritage of the House of Braganza, was the county seat until the nineteenth century.The construction of the Castle of Evoramonte it started after the conquest from the Moors by the Portuguese forces commanded by the legendary Geraldo Sem Pavor, circa 1160. The castle in stone masonry and ashlar granite, has square plan, with round turrets at the corners, mixing elements of the Gothic style with Renaissance-inspired Italian. Internally divided into three floors, with vaulted ceilings, built on pillars of stone. In turrets wider at the base than at the top, ripping visors. The cloths are adorned with us carved in stone, typical of the Manueline style.

Elvas and Amoreira Aqueduct

The Amoreira aqueduct aka "Aqueduto de Elvas" was built under the orientation of Francisco Arruda ordered by João III de Portugal and carries water from Amoreira to the city of Elvas, has 8,5km in length and 843 arches. It is considered the biggest aqueduct in the Iberian Peninsula. It's classified UNESCO world heritage since 2012.