The butt is an obsolete English measure of liquid volume equalling two hogsheads, being between 450 and 1,060 litres (99 and 233 imp gal; 120 and 280 US gal) by various definitions.

Native American elders warned about this race that wiped out their tribes. Native American Elders warned about this race that wiped out their tribes.

We have made great discoveries but then also left with more questions. What happened to some of these civilizations?

The Island of Anglesey was once home to one of history's most mysterious groups: the Druids. The Romans accused them of magical rituals, human sacrifice and even cannibalism, and soon after the invasion, the full force of the Roman army descended on this...

An exploration of demons and exorcism in Ancient Mesopotamia.

Documentary following the investigation that aims to reveal what life was like in the small Roman town of Herculaneum, moments before it was destroyed by a volcanic eruption.

How and why did Italians build a great metropolis on a lagoon?

One day around 15,000 years ago, a wall of ice 2,000 feet tall and 30 miles wide suddenly broke wide open, and it unleashed the largest flood that we know of in the history of Earth. Come and hit the road with me as we search for the geologic fingerprints...

Thorn, eth, yogh, wynn, ash, ethel, eng, long S & the Tironian et. This video takes you on a tour of the letters we don't use anymore. It'll tell you where they came from and why they disappeared.

Researchers have discovered evidence of human DNA that might've mixed with extraterrestrials, see more in this clip from Season 1, "Ancient Aliens Special Presentation."

Artist Lachlan Goudie presents a highly personal documentary, inspired by his father, in which he investigates why witches have cast such a powerful spell over generations of artists.

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? Could this recurring motif contain a prof...

The Hurrian Hymn is History's first Song. Well, the oldest known song. If we're really splitting hairs: the earliest written song that can be reconstructed.

There are many strange and fascinating facts buried in the long, bizarre history of the Olympics. The Summer Olympics of 2016 look almost nothing like those from a century ago, and it’s not just the slick presentation and technological advancements in the...

Take an inside look at the tombs of ancient Egypt, and the chilling message encoded within the walls, in this clip from Season 1, "Cars & Planes."