The New Fortress of Corfu is a Venetian fortress built on the hill of St. Mark in Corfu. The current buildings which exist within the fortress were built by the British during their rule of the island (1815–63).
In the aftermath of the first great Ottoman siege of Corfu in 1537, the Venetians developed plans to expand the fortifications of the city. Venetians built the New Fortress at the hill of St. Mark to further strengthen the defences of the outer city of Corfu and to act as the focal point of the new fortifications. The exact dating of the structure is not established but accounts vary between 1576 or 1577-1588, and 1572-1645.
The sea defences of the New Fortress were destroyed by the British when the British protectorate came to an end and Corfu was united with Greece in 1864. Under the same agreement, the Avrami and Vido island forts were also destroyed. When the latter fort was demolished, the explosion was so strong that it broke house windows on the Corfu side of the sea channel.
At the top of the castle there is a stone building which was used for defence and a brick building which in modern times functions as the headquarters of the Naval Station of Corfu. The Venetian fortifications were later expanded by the British and the French to help defend against a possible Turkish attack. Its fortifications included 700 pieces of artillery with range estimated as far as the Albanian coast.
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.