description About
Tunnels filled with human bones lie beneath the streets of Paris, and this horrifying engineering marvel points to a dark secret; new discoveries reveal why this grisly underground death maze was built and why it was abandoned.
Info
- verified Status: Returning Series
- person By: Philip Grossman
- calendar_month Release Date: 2019-04-25
- video_camera_front Companies Travel Channel, Science Channel, Procter & Gamble Productions, Like A Shot Entertainment
- tag Season: Season 4
- timer Episode Runtime: 45 Mins
- star Rating: 0 / 10
- visibilityViews: 7 views
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