From the temple of Ur to the ziggurats of Babylon, magnificent monuments spark theories that ancient pyramids could have extraterrestrial ties.
Researchers examine various documented encounters with alien life forms and the secretive methods used to hide the truth from the public.
Experts investigate the depiction of electrical tools in hieroglyphs to determine if the ancients' ability to harness power had extraterrestrial origins.
Researchers explore the possibility of the Orion constellation having a connection to alien life given its prominence in many ancient cultures.
Albert Einstein's genius may have unlocked the secrets of the universe. But did the source of his intelligence come from another world?
From elaborate chamber tombs to bizarre burial mounds, archaeological findings worldwide raise questions of a celestial gateway to the afterlife.
Theorists examine the divine prophets of ancient history to determine if their mysterious visions were gifts from extraterrestrial entities.
The mysterious origins of Peru's Nazca Lines still divide experts. Were these ancient designs a tribute to a higher power?
Accounts of alien abductions persist throughout modern history. But how far back have these otherworldly encounters occurred?
Researchers explore the controversial "Ancient Astronaut" theory and the famous author whose books ignited the curiosity of millions.
Conducting raids and settling throughout Europe, the Vikings rank as one of history's most advanced ancient cultures. Were their gods from another world?
Megaliths continue to inspire theories involving gateways to the heavens and extraterrestrial influence. What powers do these colossal structures hold?
Humankind has long found great significance in the number three. But can we discover divine or extraterrestrial secrets within its powers and patterns?
Though some doubt claims of their otherworldly origins, others believe a series of crystal skulls will awaken divine knowledge once they're reunited.
Did winged gods known as the Anunnaki influence the course of human civilization? It's a question that leads to other startling possibilities.
Modern science often regards historical accounts of magic as matters of ritual or metaphor, but a look into the past reveals new insights.
A more balanced consideration of ideas about Satan through the ages may suggest a surprising role for the devil in the saga of humankind.
Accounts of ancient procedures, persecuted practitioners and beings with unearthly powers elicit questions about the origins of medical science.
Many of history's most iconic rulers believed their might and wealth were bestowed by powers from beyond our understanding. Could they have been right?
Strange stories about golden hats, the bones of saints and the Shroud of Turin fuel speculations about the supernatural powers of relics.
Could the oceans' mysteries have extraterrestrial origins? The truth may lie in tales of fiery flying wheels, sunken cities and monsters from the deep.
Experts offer theories about the resting place and supernatural properties of the Ark of the Covenant, including the deadly abilities it may contain.
Humans have long regarded mountains as some of the globe's holiest sites. But do their lofty heights provide connection points with visitors from beyond?
As technological advancements bring our civilization closer to the stars, experts question whether doorways to other dimensions already exist on Earth.
America's history has no shortage of unsolved mysteries, and the discovery of ancient relics may hint at an extraterrestrial link in the country's past.
Stories from around the globe tell of children possessing unusual abilities. Are the origin of these special talents otherworldly?
From cursed vaults to deadly relics, researchers examine legendary lost treasures around the world for evidence of an extraterrestrial connection.
The planet Mars has piqued our interest throughout human history. After decades of Mars missions, are theories of life on Mars and other worlds correct?
Shamans claim to have the ability to control nature and communicate with spirits. Could their powers have an alien connection?
Far outnumbering humans, insects have lived on Earth for nearly half a billion years. Some researchers suspect links between insect and alien life-forms.
Tales spanning ancient Greek to modern history suggest intimate encounters with otherworldly beings. Have aliens visited Earth in search of love?