The Colonne di San Basilio (Columns of St Basil) are an ancient Greek structure, which take their name from the mountain of San Basilio where they are located, in the territory of Lentini.
The summit of the mountain shows trances of ancient settlement from the prehistoric period, with clear traces of the postholes of a hut, probably belonging to the Casteluccio culture.
A little way away is the imposing structure itself, carved in the limestone rock and measuring 18 x 16 metres, with 32 columns designed to support rock slabs. Part of the structure has collapsed, but many of the columns remain standing.
The structure was later reused by the Byzantines, who converted it into a church. Some traces of religious frescoes are even visible on some of the columns, but they are not legible.
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.