The Benedictine Monastery of San Nicolò l'Arena in Catania, Sicily, is one of the largest monasteries in Europe and the second biggest Benedictine monastery in Europe. The monastery was founded in 1558 and today it hosts the Department of Humanities of the University of Catania.
The monastery complex is located in the historical centre of the city of Catania, with the church of San Nicolò l'Arena. It shows architectonical integration of many styles through different centuries. Although the monastery was founded in the 16th century, it was modified by two natural disasters in the 17th century. In 1669 the 1669 Etna eruption surrounded the city of Catania, widening the coast for more than 1 km, and the monastery too. So the monastery was not destroyed by the lava but the area around was completely modified by a lava bench 12 meters high.
In 1693 the earthquake of Val di Noto destroyed the entire east coast of Sicily and Catania. The monastery was terribly damaged and the only floor that survived was the basement.
In 1702 the rebuilding started and lasted until 1866 (when the new Reign of Italy confiscated the monastery). The original monastery was rebuilt on the top of the latter, and they added a new cloister (the eastern cloister) and a new area (the large part designed by Giovanni Battista Vaccarini) on the top of the lava bench.
In 1977 the monastery was donated to the University of Catania, which restored the entire structure; in 1984 Giancarlo De Carlo started to design the entire restoration work.
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.