Montornés Castle sits on Roman remains. Built in the 10th century as part of a Moorish defence system, the castle was reinforced and extended by the Christians after the Reconquista.
The castle is composed of three areas surrounded by a curtain wall and forms a triangle with Torre San Vicente and Casoleta de Salandó, two structures that served to further strengthen its defence. In the present-day, only some sections of the wall, cisterns and two watchtowers are standing. It is not known exactly how and when the fortress was destroyed, though it is known that it was inhabited until the 15th century.
There are beautiful views over the Plana (Plain) of Castellón and the Mediterranean Sea.
References:The ancient Argos Theater was built in 320 BC. and is located in Argos, Greece against Larissa Hill. Nearby from this site is Agora, Roman Odeon, and the Baths of Argos. The theater is one of the largest architectural developments in Greece and was renovated in ca 120 AD.
The Hellenistic theater at Argos is cut into the hillside of the Larisa, with 90 steps up a steep incline, forming a narrow rectilinear cavea. Among the largest theaters in Greece, it held about 20,000 spectators and is divided by two landings into three horizontal sections. Staircases further divide the cavea into four cunei, corresponding to the tribes of Argos A high wall was erected to prevent unauthorized access into the theatron and may have helped the acoustics, but it is said the sound quality is still very good today.
Around 120 CE, both theaters were renovated in the Roman style.