The magnificent Castillo de Gibralfaro sits on a high hill overlooking Málaga city and, and dates back to the 10th century. Gibralfaro has been the site of fortifications since the Phoenician foundation of Málaga city, circa 770 BC. The location was fortified by Calif Abd-al-Rahman III in 929 AD. While, At the beginning of the 14th century, Yusuf I of the Kingdom of Granada expanded the fortifications within the Phoenician lighthouse enclosure and erected a double wall to Alcazaba. The name is said to be derived from Arabic, Jbel, rock or mount, and Greek the word for light, Jbel-Faro, meaning 'Rock of Light'. The castle is famous for its three-month siege in 1487 by the Catholic monarchs, King Ferdinand and Queen Isabella, which ended when hunger forced the Malagueños to surrender.
The most visible remains of this historic monument are the solid ramparts which rise majestically from dense woods of pine and eucalyptus; inside the fortress itself you will find some buildings and courtyards, reminiscent of those in the Alhambra. The ramparts have been well restored and you can walk all the way round them. At one point, you can get a good view down into the La Malagueta bullring - some visitors linger for a free view of the bullfight. These walls make a fun, interesting and scenic walk, and usually you will have it to yourself, as there aren't many tourists about.
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.