The Fortaleza del Castro is a hilltop fortress in Vigo built in 1665 during the Portuguese Restoration War in order to protect the city from the continuous raids by the British Royal Navy, allies of Portugal.
Built on the hill of the same name, the defensive system of the city consisted of the fortresses of Castro and San Sebastián and the now disappeared city wall. The city wall had an irregular shape due to the orography of the city, it was constructed by the Engineer Colonel Fernando de Gourannanbergue and maestre de campo Diego Arias Taboada to link the two fortresses. Despite this effort to provide security to the city, documents from that time say that this defensive system was ineffective as it could not impede landings further along the coast.
After several attempts to improve the defenses of the city, Vigo was looted again by British navy on the 23-24 October 1702 during Battle of Vigo Bay at the War of the Spanish Succession.
In 1809, the fortress was occupied by the French army during Peninsular War; on 28 March that year the fortress was reconquered following an uprising by people of Vigo, because of the city was given the honorific title of 'the faithful, loyal and courageous city of Vigo' the following year.
Nowadays the fortress is one of the preferred sites for people to take a walk in Vigo, because his beautiful gardens, open spaces, fonts and also the privileged views.
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.