In the vast steppes of Kazakhstan, archaeologists have uncovered something never seen before: a 4,000-year-old hexagonal pyramid. Made of stacked stone with upright corner monoliths, this Bronze Age ...

For years, Egyptologists have hotly debated how the massive pyramids of ancient Egypt were built more than 4,000 years ago. Now, a team of engineers and geologists brings a new theory to the table — a ...

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