Throughout the world, there are ancient structures that defy explanation because even with today's technology they would be nearly impossible to duplicate. How were ancient civilizations able to build such extraordinary structures?
Subtitles: English
Season 5
S05:E01
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S05:E02
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S05:E03
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S05:E04
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S05:E05
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S05:E06
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S05:E07
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S05:E08
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S05:E09 - Extraordinary Structures
Throughout the world, there are ancient structures that defy explanation because even with today's technology they would be nearly impossible to duplicate. How were ancient civilizations able to build such extraordinary structures?
S05:E10
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