—An exploration of strange and inexplicable mysteries; contributions from scientists, historians and witnesses as they seek to shed light on how the impossible can happen.

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Season 818 of 18 Episodes

All over the world stand ancient structures so massive, precise, and baffling that they seem impossible for not just their time, but ours as well; from colossal walls and giant stone tombs to temples carved from solid rock, how did ancient civilizations achieve feats of engineering that still defy modern understanding?
Dreams have inspired humanity for thousands of years and in all this time, we have yet to answer one fundamental question: What is the purpose of dreams? From nightmares linked to unexplained deaths and more.
Throughout history, catastrophic disasters have reshaped civilizations, yet some events defy all scientific expectations.
Africa is the birthplace of humanity and remains one of the most mysterious continents on Earth; from lost cities buried beneath shifting sands, to abandoned ruins steeped in fascinating folklore, to the elusive tomb of history's most mighty queen, what secrets lie hidden throughout Africa's vast and unexplored ancient landscape?
The human mind is home to all our thoughts, hopes, dreams, and memories; the organ we call the brain not only keeps us alive, it allows us to interpret and experience the incredible world we live in. But are there people who are "wired" differently than most of us? Can unique circumstances permit some to tap into extra-sensory abilities that defy nature?
Throughout civilization there are many kingdoms and mighty empires that have risen, only to one day fall. And for some of them-like the Inca that built Machu Picchu-their eventual demise remains a mystery. What can we discover from clues left behind by these once great empires? Could the Vikings, using their longships and traits as skilled navigators, have travelled farther into America than what we are led to believe?
Every year, people risk their lives to enter places the world has marked off-limits, and in most cases, no one fully understands why; from the psychological forces that compel climbers to press on through the Death Zone of Mount Everest, to a stretch of New Mexico wilderness where at least 15 people have vanished without a trace, to a remote island in the Indian Ocean where trespassers are killed on sight - what is it about the world's most dangerous places that makes them impossible to resist?
From demonic possession and cursed homes to battlefield apparitions and ancient pacts with the Devil, history is filled with chilling accounts of supernatural forces said to be working against humanity; are these terrifying encounters simply the product of fear and belief… or could they point to a hidden war between good and evil—one that continues to this day?
Throughout history, governments have carried out top-secret projects that defy belief—from experimental aircraft and staged illusions to covert experiments that crossed ethical boundaries; hidden from the public and revealed only years later, these operations raise a chilling question: if these programs were real… what else might still be happening in secret today?
Dinosaurs have fascinated scientists for nearly two centuries, and in all that time, we have yet to answer even the most basic questions about how these animals lived, how they died and what became of them; from an extinction event whose cause scientists actively debate, to ancient dragon legends some researchers trace directly to fossil discoveries, to genetic technologies now being used to bring extinct creatures back to life.
Five centuries after the fall of the Aztec Empire, new discoveries are revealing that this lost civilization may have been far more sophisticated—and far stranger—than history has long suggested; what secrets remain buried beneath Mexico?
For centuries, certain objects have been deemed to heal the sick, summon spirits, legitimize kings, curse their owners, and even alter the fate of nations; do these artifacts truly possess supernatural power, or is their force created by human belief?
Across the planet are places where nature behaves in ways that seem to defy explanation, forests where people vanish, deserts where signals fail, caves filled with toxic air and mountains no one dares to climb; are these merely extreme environments… or evidence that Earth still contains hidden realms where the rules of nature become dangerously unknown?
Throughout history, people have feared that ancient curses can bring misfortune, madness and even death to those who defy them; are these deadly warnings powered by supernatural forces or by the terrifying ability of belief itself to shape reality?
For decades, UFO sightings have been reported by military pilots, civilians and even entire communities, and while many have been explained, some continue to defy conventional answers; from close encounters with strange beings to alleged abductions, mysterious metallic spheres and reports of an entire town terrorized by what witnesses described as an alien attack, the evidence remains tantalizing but incomplete.
For millennia, cultures around the world built pyramids from Egypt and Sudan to Mexico, the Canary Islands and beyond; some were tombs, some were temples and some may have been aligned with the heavens or built above hidden chambers and underground complexes; but why did so many ancient people, separated by oceans and centuries, return to the same monumental shape? Were pyramids simply the most practical way to build toward the sky, or could they reveal a deeper pattern of sacred knowledge?
Across the deserts of North Africa and the Near East--the region often called one of the Cradles of Civilization--entire armies, cities, and cultures have vanished beneath shifting sands. From a Persian force lost in the Great Sand Sea to buried Sumerian and Arabian cities that may have inspired enduring legends, new discoveries continue to challenge what we know about humanity's earliest empires, sacred stories and ancient beliefs.
Across the world, rare medical disorders and extraordinary capabilities reveal how little we truly understand about the human body. From mysterious diseases that freeze people in place to individuals who grow to towering heights, these anomalies challenge the limits of human biology. Are these medical outliers—or evidence that the human body is capable of far stranger things than science has fully explained?

As one of the most valuable and coveted precious metals on the planet, gold's power over mankind harkens back thousands of years.
Upcoming
Whether ancient burial practices, like graves, tombs and cremations, can preserve the soul for eternity or bring the dead back to life.
Upcoming
The five senses: sight, smell, hearing, taste and touch; constructing the reality of the world around us, like a blank canvas continuously painted and repainted every day.
Upcoming
America's monuments are inarguably impressive due to their colossal size and scope, their groundbreaking feats of engineering, and their storied histories, as well as the closely guarded secrets their implacable facades may be hiding.
Upcoming
The possibility of bones holding sacred power after death.
Upcoming
Many believe it to be the Word of God, but others claim it contains inconsistencies and contradictions that could only be manmade.
Upcoming

An exploration of strange and inexplicable mysteries; contributions from scientists, historians and witnesses as they seek to shed light on how the impossible can happen.

William Shatner

Live

According to the Greek philosopher Plato, the lost continent of Atlantis was once home to an advanced civilization before it was destroyed in a cataclysm; for centuries, archaeologists have tried to uncover evidence to prove that this legend is true.

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