What material was 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.
reach: rather globalarchitecturehistory of architecturehistory of ItalyRome
Answers by country
concrete
marble
sandstone
wood
answers
India
23
Estonia
10
Greece
16
Italy
13
Australia
18
Germany
243
the United States
44
Austria
59
Poland
2720
the United Kingdom
33
Republic of Ireland
10
Switzerland
41