The Flavian Amphitheater is the third largest Roman amphitheater in Italy. Only the Roman Colosseum and the Capuan Amphitheaters are larger. It was likely built by the same architects who previously constructed the Roman Colosseum.
It was begun under the reign of the emperor Vespasian and probably finished under the reign of his son Titus. The arena can hold up to 50,000 spectators. The interior is mostly intact and one can still see parts of gears which were used to lift cages up to the arena floor.
In 305, the arena was the setting for the persecutions of the patron of Pozzuoli, Saint Proculus, and the patron saint of Naples, Saint Januarius. After surviving being thrown to the wild beasts in the arena, the two were beheadedat the nearby Solfatara.
The elliptical structure measures 147 x 117 meters, with the arena floor measuring 72.22 x 42.33 meters.
The Flavian Amphitheater is the second of two Roman amphitheaters built in Pozzuoli. The smaller and older amphitheater (Anfiteatro minore) has been almost totally destroyed by the construction of the Rome to Naples railway line. Only a dozen arches of this earlier work still exist.
The site of the structure was chosen at the nearby crossing of roads from Naples, Capua and Cumae. It was abandoned when it was partially buried by eruptions from the Solfatara volcano. During the Middle Ages, the marble used on the exterior was stripped, but the interior was left alone and is perfectly preserved. Excavations of the site were performed 1839 to 1845, 1880 to 1882, and finally in 1947.
Narikala is an ancient fortress overlooking Tbilisi, the capital of Georgia, and the Kura River. The fortress consists of two walled sections on a steep hill between the sulphur baths and the botanical gardens of Tbilisi. On the lower court there is the recently restored St Nicholas church. Newly built in 1996–1997, it replaces the original 13th-century church that was destroyed in a fire. The new church is of 'prescribed cross' type, having doors on three sides. The internal part of the church is decorated with the frescos showing scenes both from the Bible and history of Georgia.
The fortress was established in the 4th century and it was a Persian citadel. It was considerably expanded by the Umayyads in the 7th century and later, by king David the Builder (1089–1125). Most of extant fortifications date from the 16th and 17th centuries. In 1827, parts of the fortress were damaged by an earthquake and demolished.