The Castello Maniace is a citadel and castle situated at the far point of the Ortygia island promontory, It bears the name of George Maniakes, the Byzantine general who besieged and took the city in 1038. Originally, one could only enter the castle over a bridge spanning a moat (now filled). A feature of the castle is the decorated portal. Today the castle is open to public and is a local tourist attraction in Syracuse.
The first fort was built here in 1038 by George Maniakes, a Greek general and later the Catepan of Italy, after he captured Syracuse from the Arabs on behalf of the Emperor Michael IV. Frederick II, as King of Sicily, had his architect Riccardo da Lentini rebuild it in 1232–1240. King Peter III of Aragon resided here with his family in 1288. From 1305 to 1536 the castle was used as residence by numerous queens of Sicily.
In the 15th century it was used as a prison. In the following century it was included in the fortification defending the harbour and the city. A huge explosion damaged it in 1704, after which it was renovated and adapted to the use of guns.
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.