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Secrets of the Underground

Secrets of the Underground

2017 Reality Documentary
Release date : February 14, 2017
Countries of origin : United States of America /
Original Language : English /
Creators :
Production companies : Science Channel /
February 14, 2017 United States of America Reality English More
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4.3
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Overview

A search for an underground escape route said to have been used by Al Capone. Also: who or what built earthen mounds in Washington state.
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Secrets of the Underground
Season 2
2017 • 8 Episodes

Season 2 of House of the Dragon premiered on October 28, 2017.

Most Recent: S2.E8 Quest for the Gold Rush Fortune

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  • title：Secrets of the Underground
  • status：Returning Series
  • Release date： 2017
  • Genres： Reality · Documentary ·
  • Countries of origin： United States of America ·
  • Original Language： English ·
  • Creators：
  • Production companies： Science Channel ·
  • Overview：A search for an underground escape route said to have been used by Al Capone. Also: who or what built earthen mounds in Washington state.
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