The Pantheon, also known as the Pantheon, is the only Roman imperial building intact, built in 27-25 BC by Agrippa, son-in-law of Octavian, the first emperor of the Roman Empire, to enshrine the gods on Mount Olympus, and is considered a classic building of the Augustan period. The fire of 80 A.D. destroyed most of the Pantheon, leaving only a rectangular colonnade with 16 granite columns 12.5 meters high, which was used as a portico for the later rebuilt Pantheon, the top of which is inscribed with monumental inscriptions from the first period of construction, and the original scale of the Pantheon can still be seen in the eight huge columns on the front of the portico. Translated with www.DeepL.com/Translator (free version)