Can insects that have inhabited Earth for hundreds of millions of years provide a link to extra-terrestrial beings?
Legends of lost and mysterious islands, advanced civilisations and Eden-like paradises have been told by sailors throughout human history. Is it possible these stories are more than just the myths of imaginative seafarers?
The biblical stories surrounding the Ark speak of a device with divine powers. Are these stories mere myth or did the Ark of the Covenant possess extraordinary powers?
Across ancient civilisations, the world's mountains were viewed as the sacred home to all-powerful gods. Why would so many different cultures share this belief that mountains had a connection to otherworldly beings?
Strange rock carvings from 8,000 BC, unexplained sightings in the New World, and a frightening anomaly plaguing the American West. Is there more to America's past than is found in our history books?
Legends from around the world speak of sacred entryways to the land of the gods. Are such passages - or stargates - just inventions of myth, or did this interstellar travel exist in the ancient world?
Is it possible that the world's greatest ancient relics are hidden on purpose - and protected by an extraterrestrial source?
Is our fascination with Mars simply because of its striking red color and prominence in the night sky? Or might we have a more profound extra-terrestrial connection?
Throughout history, spiritual leaders known as shamans have healed, protected and advised their people. But are they simply putting on elaborate ceremonies?
The Reptilian alien is a fixture of science-fiction, from HP Lovecraft's tales of Valusians to the Cardassians in Star Trek. Could ancient myths about reptilian creatures provide evidence that they are more than just a pop-culture creation?
From the beginning of recorded history there have been stories about beings with superhuman strength, super-sonic speed and supernatural abilities. Is it possible that these stories are based on extra-terrestrial beings that once lived on Earth?
One of the most prolific inventors of the 20th century, Nikola Tesla shepherded mankind to a new industrial era and laid the groundwork for today's technological age. Is it possible that he was influenced by some otherworldly design?
Ancient Aliens explores the controversial theory that extra-terrestrials have visited Earth for millions of years.
It's been called the key to the universe and possibly the most important scientific breakthrough of all time. Could the so-called 'God Particle' reveal the truth about our origins?
Throughout history, there are stories of strange beings unlike anything known to exist on Earth. Could they be more than just mythology?
Ancient cultures around the world tell stories of strange objects witnessed flying in the sky. But are these tales fiction, or might people actually have seen craft descending from the heavens?
All over the world there are megalithic stone structures whose construction baffles archaeologists. Is it possible that humans managed to move these gigantic rocks with the help of alien technology?