More than two millennia ago, Greek craftsmen built a bronze machine that could track the heavens with a precision that would ...

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The ingenuity of ancient Egyptian engineers may have been even more ahead of their time than we thought. A new study suggests a currently unexplained ancient structure may have been part of a water ...

Ancient civilizations left behind enigmatic sites like the Plain of Jars, Nazca Lines, Paracas Candelabra, Yonaguni Submarine ...

A team of explorers discover a forbidding cave system riddled with ancient markings that seem to contain a mysterious meaning; using advanced photogrammetry, experts finally decode these cryptic ...