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National Geographic
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6 Ancient Engineering Marvels That Defy Modern Science

A 1000-ton stone still sits unfinished in a quarry — one of six ancient engineering marvels science still can't fully explain.

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Rinku Sharma@rinku_sharma
10/16/2026 | 12:55 pm 4 Min Read
6 Ancient Engineering Marvels That Defy Modern Science
National Geographic
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šŸŽ„ **National Geographic Video** šŸ“Œ **6 Ancient Engineering Marvels That Defy Modern Science** šŸ“ŗ Channel: The Tablet Archive šŸ“– A 1000-ton stone still sits unfinished in a quarry — one of six ancient engineering marvels science still can't fully explain. šŸ”— Watch full video: https://www.youtube.com/watch?v=gcajI8-kf7Q Stay connected with Tolee for daily video updates across NASA, Discovery, National Geographic, Science, Education, Documentary, History, Space, Animals, Technology, and Kids Education!

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