How can ancient tombs across the world have so many remarkable similarities? Ancient Astronaut theorists believe that some of these tombs were designed with the help of extraterrestrials.

For thousands of years, human civilisation has been guided by the words and deeds of ancient prophets, but who were these prophets communicating with?

The Nazca lines are hundreds of gigantic lines that extend for miles throughout a remote Peruvian desert. Could the massive markings have an alien connection?

Researchers explain how alien encounters are not a modern phenomenon, and ask if there could be an alien agenda behind the abduction of humans.

What compelled ancient man to move colossal stones to build remarkably similar stone monuments all around the world, from the jungles of Costa Rica to England’s countryside?

The gods worshipped by the Norse Vikings were fearsome and mysterious. Experts investigate whether these powerful Viking Gods could have been visitors from another planet.

An examination of Erich von Däniken's controversial theories that have captured the attention of the world and ignited a movement known as Ancient Astronaut Theory.

Ancient emperors, kings and pharaohs were often attributed with otherworldly strengths, abilities and wisdom, and many were even considered gods by the people they ruled. Who were these exceptional leaders?

Accounts from various cultures describe similar divine, birdlike figures that brought advanced medical knowledge to mankind thousands of years ago. Who were these ancient surgeons?

All around the world, archaeologists have uncovered mysterious relics revered by ancient cultures for thousands of years. What is it about these ancient objects that draws people to them?

This episode examines new interpretations of ancient texts, which indicate that Satan may have been an extraterrestrial being, rather than an immortal force of evil.

Could the Anunnaki gods be more than legend? Is it possible that civilization made sudden, huge advances in development 5,000 years ago as a result of their presence on Earth?

Are crystal skulls an elaborate hoax? Or do they possess a great, perhaps even otherworldly power? This episode examines arguably the most controversial of ancient artefacts.

Reverence for the number three dates back thousands of years, and can still be found today in art, architecture, science, literature and religion. What is it about this number that continues to fascinate mankind?

Throughout the ancient world, magic was used for everything from healing to communicating with the gods. But did magic really exist in the ancient times as a means of replicating the power of the gods?