The History Channel

Might the tools and technology of ancient builders have come from distant galaxies? Evidence suggests that an ancient mountaintop fortress in Peru was constructed with laser-like tools... temples at Vijayanagara India were built to harness cosmic energy... and an acoustic chamber in Malta enabled interplanetary communication. If the ancient builders did use advanced technology, could it prove that aliens visited Earth thousands of years ago?

Iron swords forged in blazing hot fires... Gunpowder with the power to tear apart human flesh... And rockets capable of destroying entire cities... Throughout history, advances in technology have lead to the development of powerful weapons--each more deadly than the last. But were these lethal weapons the product of human innovation--or were they created with help from another, otherworldly source?

People on every continent have claimed to see the footprints of Bigfoot. And ancient myths and legends speak of an ape-like giant stalking the earth. What if, as Ancient Astronaut theorists believe, there is evidence to connect Bigfoot with an alien species that once visited Earth in the distant past?

At nearly 14,000 years old, the ruins of Puma Punku are the oldest and most baffling on the face of the Earth. No one knows who designed and built this complex of sophisticated inter-locking blocks, and then vanished. Researchers investigate the ruins on-location in Peru and present new computer analyses. Forensic evidence on the ground, together with local myths and legends, suggest this site may have been designed and even once inhabited by a species of extraterrestrials.

At the end of the 13th century, Scotland was a country under attack. Defeat seemed inevitable. But from nowhere emerged a man who became Scotland's greatest hero--William Wallace, commonly known as Braveheart. Rising from obscurity in a violent age, he became an inspirational leader and national symbol of patriotism and survival. Now, new research allows us to journey back to his world. Traveling down secret pathways that still lie beneath Scotland, we rediscover a surprisingly sophisticated culture that hasn't been seen for 700 years--a world Braveheart died to protect. Uncovering the mysteries beneath Eldersie, we reveal the town that gave rise to the Guardian of Scotland. Restoring the Castle of Lanark to its former glory, we visit the place where he sought revenge for the murder of his wife. And rebuilding Stirling Bridge, we relive Wallace's famous battle against the English army--a turning point in the history of Scotland and the life of its champion.

The construction of the "unsinkable" Titanic needed an army of workers and the resources of a purpose-built town complete with an array of specially built docks and facilities to construct it. This is the forgotten story of Belfast's "Titanic Town."

99% of all animal and sea creatures who ever lived have become extinct. Watch as some of the most bizarre and strangest creatures are brought back to life. Meet the nothronychus (a strange amalgam of bird and sloth), the anomalocarus (a 7-foot shrimp), as well as saber-toothed cats, mastodons and wooly rhinoceros. Advanced computer graphics, location shooting and expert interviews, will reveal detailed illustrations of what these ancient monsters looked like, where and how they lived, and how they died.

We may be a law-abiding nation but we also admire the outlaw, and the clash between rebels and the rules has shaped our states. Which states like to make their own rules, and which do the heat have on lockdown?

After three years on the road, host Brian Unger is taking a different look at just how our states got their shapes. We'll hear about the unique American values that have made this country what it is today, and travel from coast to coast and everywhere in between. Along the way, Brian reveals that just as we shaped the map, it has shaped us.

It's a rivalry that tears us apart every four years, but how did our nation divide into red states vs. blue states, and what happens to the states caught in the middle?

How have massive geological events helped create the American map? Long before the Founding Fathers drew the map, mother nature shaped some states. How did an asteroid create the border for three states and change history? How did glaciers plow the great plains and how did natural disasters continue to alter the map?

Considered one of England's greatest Kings and builders, Henry VIII remains famous for his six wives. Henry ruled by fear, executing his opponents and several of his wives. He ordered the destruction of beautiful buildings, libraries and works of art. However, Henry also built many magnificent palaces like Hampton Court and transformed Westminster Abbey from a modest church into the epicenter of the Protestant religion. Henry VIII remains one of the most important monarchs to have ruled England.

Informational programming.

Informational programming.

Informational programming.

Informational programming.

Herod, king of Judea, was famous for creating a series of great buildings, and laying the foundations for Jerusalem. Watch as Herod's impressive projects are charted, including his masterpiece, Herod's Temple. Follow a team of historical detectives who use evidence from recent excavations, scientific studies and historical documents to piece together clues to what ancient locations looked like. They are brought to life by computer graphics which allow viewers to fly over, enter the streets, walk through the halls and peer into these vanished worlds.

At the end of the 13th century, Scotland was a country under attack. Defeat seemed inevitable. But from nowhere emerged a man who became Scotland's greatest hero--William Wallace, commonly known as Braveheart. Rising from obscurity in a violent age, he became an inspirational leader and national symbol of patriotism and survival. Now, new research allows us to journey back to his world. Traveling down secret pathways that still lie beneath Scotland, we rediscover a surprisingly sophisticated culture that hasn't been seen for 700 years--a world Braveheart died to protect. Uncovering the mysteries beneath Eldersie, we reveal the town that gave rise to the Guardian of Scotland. Restoring the Castle of Lanark to its former glory, we visit the place where he sought revenge for the murder of his wife. And rebuilding Stirling Bridge, we relive Wallace's famous battle against the English army--a turning point in the history of Scotland and the life of its champion.

The construction of the "unsinkable" Titanic needed an army of workers and the resources of a purpose-built town complete with an array of specially built docks and facilities to construct it. This is the forgotten story of Belfast's "Titanic Town."

99% of all animal and sea creatures who ever lived have become extinct. Watch as some of the most bizarre and strangest creatures are brought back to life. Meet the nothronychus (a strange amalgam of bird and sloth), the anomalocarus (a 7-foot shrimp), as well as saber-toothed cats, mastodons and wooly rhinoceros. Advanced computer graphics, location shooting and expert interviews, will reveal detailed illustrations of what these ancient monsters looked like, where and how they lived, and how they died.