The Church of San Sebastiano dates from the 16th century and is located in Piazza Garibaldi, in front of the Cathedral. It was built as a tribute to said Saint by the people in gratitude for deliverance from the plague. In 1711 it was altered along its whole length to make space for the Piazza Garibaldi. As a result, a new façade was designed by Pasquale Saetta in the late 19th century. It is embellished with columns employing all three classical architectural orders: Doric bases, Ionicin central sections and Corinthian crowns. There are also niches containing statues of the sculptor Francesco Biangardi, who worked in Caltanissetta during the late 19th century. The centre sculptures represent the saints Peter and Paul; the upper band shows San Sebastian pierced with arrows, being created in memory of his martyrdom.
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.