What material was used to build the the Great Pyramid of Giza?
concrete
mostly granite
mostly sandstone
mostly limestone
It is estimated that 5.5 million tonnes of limestone (quarried across the river), 8,000 tonnes of granite (imported from Aswan), and 500,000 tonnes of mortar were used in the construction of the Great Pyramid.
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Answers by country
concrete
mostly granite
mostly sandstone
mostly limestone
answers
Australia
23
the Netherlands
14
the Philippines
11
the United States
83
Austria
11
Greece
18
Germany
43
Poland
1980
India
54
the United Kingdom
63
Republic of Ireland
11