13 Amazing Facts About the Pantheon in Rome

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10The Oculus and Sunbeam Phenomenon

The iconic oculus in the center of the Pantheon’s dome serves both aesthetic and functional purposes. Aside from allowing natural light into the structure, it creates a breathtaking phenomenon on sunny days.

The sunlight streaming through the oculus casts a radiant beam that moves around the interior, highlighting different parts of the temple throughout the day.