The Great Pyramid Has Survived 4,600 Years. A Strange Feature May Help Explain Why.

Researchers placed 37 accelerometers inside and around the Great Pyramid of Khufu to measure how it responds to vibrations.

The study found structural features, including empty relieving chambers above the burial chamber, that may help reduce earthquake damage.

These findings may help explain the pyramid’s remarkable durability over millennia.

The work also points to sophisticated engineering knowledge in ancient Egypt.