Conversation so far:
who ordered the great pyramid of giza to be built
Egyptologists believe the pyramid of Giza was built as a tomb for the Fourth Dynasty Egyptian pharaoh Khufu.
why is the pyramid of giza significant
The Great Pyramid of Giza is the oldest of the Seven Wonders of the Ancient World, and the only one to remain largely intact.

Question: what materials is the pyramid made of
Self-contained rewrite: what materials is the pyramid of giza made of