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  "dek": "The enduring mystery of how the ancient Egyptians built the Great Pyramid of Giza – with its 2.3 million multi-tonne stone blocks – has puzzled researchers for centuries. Mainstream archaeology holds that the pyramids were constructed from natural limestone or granite blocks precisely cut and hauled into place. An alte",
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      "title": "Could Roman concrete have clues on how Pyramid of Giza was built – and saved?",
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