What was the primary building material used in the construction of Machu Picchu?
Polished dry-stone walls
Adobe bricks
Wooden beams
Mud and straw
Answer
Machu Picchu was built using polished dry-stone walls, a technique that showcases the Inca's exceptional skill in masonry. The stones were cut and fitted together so precisely that no mortar was needed to hold them in place.
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