The History Channel

A team of top scientists come together with one goal to create the definitive guide to Bigfoot. Does the creature exist? And if it does where is it? And how can it survive without being detected? Using a new interactive map the team has plotted more than 10,000 Bigfoot type sightings from around the world. These sightings are of an unidentified creature which walks on two legs and is covered in a thick layer of hair. Many of theses sightings date back over 100 years. With their expert knowledge of the natural world they are able to dismiss nearly 90% of the sightings, but what emerges is a series of global hotspots that cannot be explained which indicate that something is out there. The team examines these global hotspots and searches for explanations including new theories that suggest we may have been looking for the wrong creature all along?

Inflicting over $80 billion in damage, and causing the deaths of over 1,800 people, Hurricane Katrina was among the greatest engineering disasters in US history. But was Katrina the "big one" New Orleans had been waiting for? Many believe the "perfect storm" is yet to come. If and when the big one does hit, will New Orleans be ready? The answers are in the underground. From the Army Corps' latest levees to last-ditch efforts to save New Orleans' vanishing wetlands, we're going deep into New Orleans' underground to see where New Orleans stands, and if it stands a chance.

Deep within the former Soviet Union lays a classified, subterranean world of Cold War secrets. Join host Don Wildman as he ventures behind the Iron Curtain to reveal how the Soviets were really preparing for a nuclear war. From nuclear submarine bases to underground apartment blocks, these sites are so top-secret; they've never before been seen on American television.

Prague is a city cloaked in mystery, with an underground to match. Medieval castles line the streets and hide dark dungeons deep below them. From quarries where Hitler may have stored his most powerful secret weapon to mines that doubled as Communist slave camps, Prague has surprising stories to tell. Join host Don Wildman as he reveals the technological marvels that allowed the construction of one city upon another--literally.

The gladiators of ancient Rome were the ultimate fighting machines. They waged bloody battles to the death for the entertainment of the masses--and to earn their freedom. From the depths of the vicious and magnificent Flavian amphitheater, to the buried brothel where they lived their last days, these are the secret lives of Rome's famed slave warriors. Peel back the layers to uncover the origin of these fierce fighters, as host Don Wildman heads into ancient crypts, subterranean chambers used for pagan worship, and to the school that taught the gladiators how survive... and how to kill.

Belize was the nerve center of the ancient Mayan civilization. Hundreds of ruins dot the landscape and reveal clues to bloody rituals, advanced architecture and a belief in an unforgiving underworld of Mayan gods. Host Don Wildman ducks beneath the jungles of Belize to uncover burial tombs, sacrificial altars, ritualistic caves and the literal entrances to the Mayan underworld.

Dublin, Ireland is much more than a city full of pubs and pints. Pagan burial tombs, subterranean defense tunnels, and mysterious burial crypts line the underground below the rolling hills. Even an underground river runs through the heart of the city where you'd least expect to find it.

An exploration of the Giganto (King Kong) legend using modern science, technology, and historic eyewitness accounts. Gigantopithecus (the Latin term for "Giant Ape") is believed to have existed 9 to 5-million years ago and supposedly was around 10-feet tall. Some fossil evidence shows that it may have lived in China or India. Scientists of varying fields will attempt to genetically connect Giganto to modern-day creatures from around the world. Could Bigfoot be a relative? Forensic testing, extensive scientific research, 3-D animation, and body reconstruction will help determine the true mystery behind this prehistoric ape.

Americans have a lot of vices and they don't just stay in Vegas. From drugs to gambling, the state you live in may shape how bad you can be.

It's the glue that holds our map together and feeds America, but the Midwest is more than just state fairs and flyover country.

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?

America is a nation under siege by unexplained phenomena. Whether you're afraid of Bigfoot or alien invasion might depend on what state you call home.

This is the secret story of'the War to End All Wars and what happened when the first weapons of mass destruction reached the battlefield. We uncover the forgotten story of the secret deals, government mistakes, political intolerance, and America's role in the war. We mine formerly guarded vaults and archives worldwide, reviewing once top-secret footage and declassified materials to search for the facts behind the thrilling stories with which we've become familiar.

Informational programming.

Informational programming.

Informational programming.

Informational programming.

The sin of anger is the sin that kills. The prophet Moses was prone to fits of rage. The mythic warriors of Sparta meditated in order to banish the sin of anger before a battle. Italian writer Dante placed those that committed the sin of anger in the "Fourth Circle of Hell," tearing each other limb from limb for eternity. Those who study demonology claim the sin of anger is really the possession of the body by the demon Ammon. Today, neuroscientists believe they've found the emotion of anger in the "amygdala." So, is the sin of anger demonic or chemical?

The sin of greed is condemned in the Bible by the Tenth Commandment: "Thou Shalt Not Covet." While vilified from the time of Moses to the modern bankers' bailouts, the sin of greed has created vast empires and doomed them as well. Wise men from the philosopher Aristotle to Jesus have railed against this vice, but the 18th Century economist Adam Smith theorized that capitalism itself was based on the sin of greed. Today, many question the sin... has greed become good?

Naples, Italy narrowly escaped meeting the same fate as its neighboring city, Pompeii in 79 AD when Mount Vesuvius wiped out everything around it. The wind saved Naples that day, but life in the shadow of this massive volcano is unlike any other--and so is its underground. For centuries, Neapolitans have carved out their underground, creating a parallel world where their secrets are safe. Entire neighborhoods line the underworld, time capsules of ancient life--with banks, bakeries and homes preserved below. From repelling into an ancient Greek cavern to uncovering Nero's famous stage underneath a modern apartment, host Don Wildman steps back almost 2000 years to discover the world hidden beneath this volcano.

Join host Don Wildman as he travels to Sicily to trace the mafia's roots back to when they were a vigilante secret society in an underground network. The original mafia was created to hold trials against corrupt city officials and execute the accused. Follow Don as he tracks the escape route of a most-wanted mob boss through ancient subterranean waterways. There he'll discover a bone-crypt that holds the key to Sicily's violent past. Finally, Don will reveal how the mafia entrenched themselves forever into Sicilian society by teaming up with the Allies during WWll and undermining the Axis' bunkers deep within the Sicilian hillsides.