How accurately is the Great Pyramid aligned?
The Great Pyramid's sides are aligned almost exactly with true north, south, east, and west, a stunning feat of precision for ancient engineers.
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- Who built most of the Central Pacific line of the Transcontinental Railroad?
“Thousands of Chinese immigrant workers built most of the Central Pacific line.”
Reference: National Park Service
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Where was the golden spike in the Transcontinental Railroad driven?
The Transcontinental Railroad was completed when the golden spike was driven at Promontory Summit, Utah, on May 10, 1869.
Did the Wright brothers build a wind tunnel?
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