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Japan is a land rich with ancient mysteries and it has also become known as a UFO hotspot.

Ancient Aliens

Secrets of Japan

The ancient legends of the Norse read like modern science-fiction, with powerful gods wielding mythic weapons and high technology.

Mysteries of the Norse Gods

From ancient sites like Stonehenge to the crop circle phenomenon and modern-day UFO sightings, Great Britain is a place of mysteries; exploring if throughout history this island has been a destination for extraterrestrial visitors.

Britain's UFO Files

In the age of smartphones and social media, more evidence of otherworldly activity has come to light than ever before.

Aliens in Our Midst

Examining how thousands of years ago, people all over the world described encounters with enormous, human-like beings; exploring how some archaeologists claim to have found skeletons of extraordinary size; is it possible the giants actually existed?

The Giants

All over the world, there are people who claim they have been abducted by aliens; since the 1970s, a growing number of researchers have dedicated their lives to uncover what is behind this disturbing phenomenon.

The Abduction Files

Throughout the ancient world, there are depictions of mysterious figures that appear to be half human and half bird. In many cultures, they are revered as divine and have magical abilities. But could these so-called Birdmen have truly existed? And if so, just what were they?

The Birdman Mystery

Volcanoes have inspired countless myths and legends, but curiously, they are also major hotspots for UFO sightings; is it possible that these geological formations, which can generate great energy, are attracting otherworldly visitors?

The Volcano Factor

Dr. J. Allen Hynek was a pioneering scientist who developed smart weapons, optical tracking systems and space satellites; yet he is best known as the notorious government UFO debunker who became one of the founding fathers of ufology.

The Legacy of J. Allen Hynek

Across the globe, reports of mysterious glowing orbs are on the rise; their movements frequently defy the laws of physics, and now they are even being reported near military bases, ships, and nuclear weapon facilities.

The Glowing Orb Phenomenon

The Aztecs have built a powerful and feared empire and they have claimed that they were guided by a pantheon of more than a thousand gods who came to Earth from different parts of the universe.

Mysteries of the Aztecs

"Ancient Aliens" is counting down ten mysterious mountains that are notorious for otherworldly phenomena; from a summit in Sri Lanka that is said to be a portal to other worlds and a volcano in Washington that was at the center of a UFO sighting.

The Top Ten Mysterious Mountains

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Texts, archaeology and legend contain evidence of past human-extraterrestrial contact.

S21 E10 | The Volcano Factor