What material is the dome of Rome Pantheon made from?

concrete
marble
sandstone
wood
The temple - 43 meter in diameter - was built by emperor Hadrian. Its dome with 8-meter wide oculus was built of un­re­in­forced concrete that has been a mystery for ages. The weight of Roman concrete used to build the mono­litic struc­ture is merely 1/5 of common con­crete. Such effect was achieved by mixing in of volcanic tuff and pumice.

Answers distribution

concrete
marble
sandstone
wood
answers
flagthe Netherlands
54%
18%
27%
0%
11
flagItaly
50%
25%
16%
8%
12
flagGermany
43%
12%
31%
12%
16
flagPoland
27%
36%
32%
4%
1294
flagthe United Kingdom
26%
43%
30%
0%
30
flagUnknown
20%
51%
23%
5%
190

Gender

men21%
women23%
concrete
21%
23%
marble
44%
28%
sandstone
29%
42%
wood
4%
5%

Language versions

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What material is the dome of Rome Pantheon made from?
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Details

Author: smyru
Illustration: Gonzalo Malpartida
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