The unusual hemispherical dome sits atop the famed Pantheon, the very name showcasing the temple’s purpose of a place of worship. Completed in AD128, the remarkable feat of engineering and architecture has withstood the test of time and civalizations to remain as one of the great sites of the world today.
The dome is punctured by a 30ft-wide circular hole known as the ‘oculus’, the only source of natural light for the building and through which the sun casts a direct beam of light onto the entrance to the Pantheon’s interior only twice a year, at the summer and winter equinoxes. This would have been seen to ‘invite’ the Emperor into the Pantheon as “the Romans believed the relationship between the emperor and the heavens was at its closest during the equinoxes. It would have been a glorification of the power of the emperor, and of Rome itself.”.
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