From The History Channel : If ancient aliens visited Earth, can evidence of their existence be found in the mysterious structures that still stand throughout the world? I ...

From The History Channel : Super-heated death rays... High-tech rockets... Powerful sonic weapons... Are these examples of modern day science or could these technologies ...

From The History Channel : If ancient aliens visited Earth in the remote past, could they have given us advanced technology, past down through human history? And could th ...

If extraterrestrials influenced human history, can evidence of their existence be found in hidden tunnels and caverns around the world? Could a cave in Ecuador contain me ...

From The History Channel : Ancient underwater cities can be found around the globe, but could these aquatic worlds be the ruins of unknown civilizations--or even proof of ...

From The History Channel : Myths and legends have long been regarded as fantastic stories that describe powerful gods, mutant giants and fearsome monsters. But why do so ...

From The History Channel : Mysterious places can be found around the Earth, and, inexplicably, UFOs are often sited near these mystical areas. Planes and ships unaccounta ...

From The History Channel : Reports of encounters with strange beings and sightings of mysterious objects in the sky have occurred throughout history. A 13th century histo ...

From The History Channel : If ancient aliens visited Earth, what was their mission, and is there evidence that points to when they will return? Ancient Sumerian tablets d ...

From The History Channel : If ancient aliens visited Earth, who were they, and where did they come from? Possible historic evidence and beliefs are examined around the wo ...

From The History Channel : If ancient aliens visited Earth, what was their legacy, and did they leave behind clues that exist in plain sight such as sophisticated aircraf ...

According to ancient alien theorists, extraterrestrials with superior knowledge of science and engineering landed on Earth thousands of years ago, sharing their expertise ...