What dome, built by the Romans, is the largest unreinforced concrete dome ever built?
Answer Pantheon
The domed church was built in 125 AD and measures 142 feet in diameter. At the center of the dome is a 27-foot hole or oculus. The dome was built in place, and it is believed it was constructed from the outside in.
Asked by Jennifer Sinclair · Last updated 5 years ago · 4.9K views · SOURCE
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