In numerous sacred traditions, the number 12 holds a divine significance; it can be found repeated in ancient architecture, groups of 12 wisdom keepers and even the latest scientific principles.

According to the earliest Tibetan traditions, hidden high in the Himalaya Mountains is a kingdom of the gods - Shambhala. Is it possible that this mystical realm truly exists, and can be reached through ancient practices designed to access other dimensions?.

The mysterious symbol of the keyhole exists in mystic texts, sacred architecture and ancient artwork found all over the planet; exploring if this cryptic shape represents a profound connection to the cosmos.

Ancient cultures recorded stories of enormous beings that descended from the sky; exploring if massive megalithic structures and reported discoveries of towering human-like skeletons reveal that the world was once inhabited by giants.

Rebellious angels, giant hybrid beings, and humans taken up to a heavenly realm above the Earth; examining the possiblility that The Book of Enoch was stricken from the Bible because it documents humanity's extraterrestrial origins.

In this extraordinary two-hour special, Shatner will bring thought-provoking questions to the leading experts of the show. Ancient Astronaut theorists Giorgio Tsoukalos, Erich von Däniken, David Childress, William Henry and Linda Moulton Howe will be joined by former British Ministry of Defense investigator Nick Pope, rocket scientist Dr. Travis Taylor, theoretical physicist Dr. Michio Kaku, and religious history experts Rabbi Ariel Bar Tzadok and Reverend Michael Carter. They will explore everything from human origins to groundbreaking archaeological finds, new understandings of the cosmos and the profound possibility that we are not alone in the universe.

Did ancient Druids travel to New England and New York's Hudson Valley centuries ago, bringing with them the beliefs and technologies of their alien mentors, the Shining Ones of Irish myth? And did they leave behind vital clues in the form of mysterious stone structures still visible on the landscape?.

Serpent gods are found in the traditions of Mesopotamia, Central and South America, India, China, Japan and the Bible; a look at if these stories describe a race of reptile-like extraterrestrials instead.

In the 20th century, pioneering scientists, journalists and investigators defied convention and began documenting UFOs. Now, with incredible new UFO accounts coming to light, will their work finally culminate in undeniable proof of extraterrestrial visitation?

Archaeologists have discovered that many ancient sites were built with an acoustic purpose, and often resonate at a frequency that has a profound effect on the human brain. Could ancient people have been aware of a harmonic code? One that put them in contact with alien beings?

Some people in Mount Shasta believe that a lost continent called Lemuria is hidden beneath the mountain, along with its capital crystalline city, Telos.

Machu Picchu is fascinating to archaeologists and historians because it is not documented in any of the ancient chronicles of the Spanish conquistadors.

Numerous experiments which were performed on human test subjects in the World.