Deadly forests. Haunted houses. Mountains where visitors never return alive. Are there such things as "evil places"? Places where bad things seem to repeatedly--and inexplicably--happen?

For centuries, archaeologists have tried to unravel the mysteries of how--and why--certain incredible structures like the Great Pyramid at Giza, the staircase at Loretto Chapel, and Coral Castle were built. Will we ever find the answers?

Millions of people around the world claim to have had an encounter with a creature unlike any recognized by mainstream science--such as the Mothman, Chupacabra, and Mongolian Death Worm. Could these incredible creatures be real?

Many mysteries of planet Earth are far from understood. How was Devil's Tower formed? Or why do some people get struck by lightning multiple times?

Ancient practices such as prayer, blood sports, voodoo, and exorcism are often thought to be relics of bygone superstition--but there is evidence they have an impact on the physical world.

Perhaps the greatest unexplained mystery of all is: what happens to us after we die? Perhaps clues to the answer lie in unusual cases of near-death experience.

Even after centuries of study, the human mind remains as inscrutable as ever. Could the quintessential human machine, the brain, be even more powerful than we realize?

How do some people live through the impossible? Remarkable tales of human survival force us to reconsider what we know about our own will to live.

For more than 200 years, treasure hunters have been coming to Oak Island in search of fantastic riches. Could it be that, as legend suggests, the treasure is protected by a deadly curse?

Modern prophets. Catastrophic premonitions. Dreams of future crimes. Can people really predict the future? And if so, can we harness this knowledge to avoid deadly events waiting in the days to come?

Abandoned cities. Ancient cultures nearly erased by time. And colossal empires that simply vanished without a trace. How-and why-does a civilization become 'lost'?

Many of the world's deadliest cults ventured down dark, dangerous rabbit-holes of twisted ideologies, even persuading their members to kill. Is there any sense to these sinister groups?

Our world is full of strange weather phenomena that we still have no explanation for. Is it a result of simple scientific anomalies, or could there be a stranger, more spiritual force at work?

Many have insisted that simple stones can do everything from choosing a king to causing death. What is it about rocks and stones that inspire some people to worship them?

From Dracula to the Beast of Gévaudan, stories of grotesque monsters who thrive on human blood have been around for centuries. Could such vampires and werewolves actually be real?

A dog that can detect cancer faster than doctors. A horse that can read your mind. And birds that can sense disaster days before it happens. What gives animals these extraordinary powers?