What materials be used to build machu picchu?
Answers: Rocks and stones although it has be proved that pre-Incas and Incas used a mixture of bird dropping and egg white as a kind of cement.
Rocks Stones.
Machu Picchu be constructed largely of polished dry-stone wall. The Incas were masters of this technique, call ashlar, in which blocks of stone are cut to fit together tightly in need mortar. The Incas were among the best stone masons the world have seen, and copious junctions contained by the central city are so impeccable that not even a knife fits between the stones.
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