The UnXplained

Extraordinary Structures

Documentary Jun 9, 2023 40 min HISTORY Vault

Available on HISTORY, Philo, Prime Video, discovery+, Disney+, Hulu, Sling TV, HISTORY Vault

S5 E9: 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? And what purpose did they serve?

Documentary Jun 9, 2023 40 min HISTORY Vault

TV-PG

Information

Released: 2023
Run Time: 40 min
Rated: TV-PG
Region of Origin: United States

Languages

Original Audio: English
Audio and Subtitles: English (United States) (AAC, CC)

Accessibility

: Closed captions (CC) refer to subtitles in the available language with the addition of relevant non-dialogue information.