Castillo de Salobreña dates from the 10th century. The current structure which was built during the Nasrid dynasty. Trapezoidal in shape, it has four towers. It has 3 enclosures: the disposition of the interior comes from the old Nasrid palace; the other two, with a defensive function, are a Castilian extension of the end of the 15th century. Refreshing internal gardens surround the architectonic volumes. From its towers it is possible to see the urban network of Salobreña, the fertile plain, the Mediterranean Sea, the close mountain ranges and, even, Sierra Nevada.
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.