History

The balance and harmony of the Pantheon. Equal in height and diameter, the building's rotunda creates a perfect sphere measuring 43.2 metres (150 Roman feet). The Pantheon, completed in 126 AD, still holds the record for the world's largest unreinforced concrete dome. pic.twitter.com/w0Ihak1suX

— Gareth Harney (@OptimoPrincipi) January 14, 2023