The pyramids of Giza are made from granite blocks, weighing as much as 70 tons, and limestone blocks, weighing up to 15 tons. The stones were mined on the other side of the Nile from the pyramids and transported to the pyramids by boat and sledge. In terms of how such large stones were put in place there is pretty good evidence ramps made of rubble were constructed around the pyramids and used to transport the blocks to where they were positioned.

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