1. Impossible Ancient Structures

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?

2. Nightmares and Dreams

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.

3. Unnatural Disasters

Throughout history, catastrophic disasters have reshaped civilizations -- yet some events defy all scientific expectations.

4. Mysteries of Africa

Africa remains one of the most mysterious continents on Earth. From lost cities buried beneath shifting sands, to the elusive tomb of history's most mighty queen, what secrets lie hidden throughout Africa's vast landscape?

5. Mind Over Matter

The human mind is home to all our thoughts, hopes, dreams, and memories.

6. Mighty Kingdoms Unearthed

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.

7. Dangerous Places

Every year, people risk their lives to enter places the world has marked off-limits. What is it about the world’s most dangerous places that makes them impossible to resist?

8. Satan's Army

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?

9. Top Secret Projects

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?