Stream Now
Shows
Meet The Expedition Members on Expedition From Hell: The Lost Tapes
The Best Moments of Puppy Bowl XX
Puppy Bowl XX Partners
Baltimore Ravens Hang With Rescue Puppies for Puppy Bowl XX!
Shop Puppy Bowl Apparel
Meet the Players of Puppy Bowl XX
Get Ready for Puppy Bowl XX on Animal Planet!
Naked and Afraid: Last One Standing Survivalist's Weekly PSR Ratings
Cast Headshot
Who Will Be the Last One Standing?
Meet the Puppy Bowl XIX Starting Line Up
See All Shows
Nature
Exploration
Space
Science
Motor
Schedule
More

6 Seasons
Watch on
S2 E5 4/17/18

Conspiracy on Devil's Mountain

A secret structure on a sinister mountain, an industrial compound swallowed by a forest, and a mysterious run in a sand dune are strange deserted engineering projects, and new discoveries reveal how they were built and why they were abandoned.

← Previous Episode
Next Episode →

The Latest

Discovery Exploration

Seasons

Episode   1

Armageddon Highway

Episode   2

Curse of the Haunted Prison

Episode   3

Arctic Hell Pit

Episode   4

Desert Ghost Fort

Episode   5

Conspiracy on Devil's Mountain

Episode   6

Secrets of the Alien Shrine

Episode   7

Amazon Ghost Town

Episode   8

Sea Fortress of Doom

Episode   101

Chernobyl's Deadly Secrets