Can you believe that the Roman Pantheon has stayed intact for over 2000 years with a hole in the roof? The hole is called the 'oculus' or eye. Pantheon means 'all gods' in Greek, it was originally a Roman temple to all gods and is now a Catholic church. It was designed by Emperor Hadrian and is still the world's largest unreinforced concrete dome (by the way the Roman' invented concrete).
Try and draw a diagram of the building, (thinking of shapes in our environment) The diameter of the dome roof is exactly the same as its height (43.3m) meaning a sphere with a diameter of 43.3m would fit perfectly inside. The building is essentially a cylinder with a dome roof and the front facade.
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| Front of the Pantheon (can you spot Alex?) |
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| inside showing the oculus |
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