Who can resist a good mystery, the kind that leaves you both rattled and baffled? Certainly not us. So it's with sinister pleasure that we bring you 13 tales of unrighteous deeds, inexplicable vanishings, supernatural weirdness, and the stuff that nightmares are made of.
Heading out the door? Read this article on the new Outside+ app available now on iOS devices for members! Download the app.
Get SpookedCan't get enough spine-tingling mystery? Check out more tales of fabulously ill-fated adventure and a photo gallery of the world's creepiest places.
Adrift: Did Alaska's frigid waters take another life?
Eaten Alive?: A baby goes missing in the Oz outback
Gold in Them Hills: Untold riches may lie hidden in Arizona
Treachery at Sea: A honeymoon cruise proves lethal
Disturbing the Dead: What does the president know about Geronimo's skull and when did he know it?
Swallowed Up: A fateful trek into the Hawaiian jungle
Only the Mountain Knows: Who summited Cerro Torre first?
Strange Geometry: The Bermuda Triangle's horrors
Fatal Ride: A Tour de France champion's macabre end?
Face Scratcher: An unholy terror descends on India
Mystery Writer: A lost legend was it suicide or murder?
Swept Away: The doomed sea crossing of a French baron
Final Patrol: A dubious disappearance in the wild
No “X” Marks the Spot: Hidden Treasure Waiting to be Discovered
Cracks in Creation: The Bermuda Triangle isn't the only place you might witness the unexplained