Tokyo, Japan is a city straight out of the future, above ground... and below. We'll go beneath the busy streets to see the latest technology that will save the city from the many natural disasters ready to strike. From there, we head back in time to World War II to see how Hiroshima's underground offered protection from the most powerful bombs... and get an inside look at the secret life of the Ninja. Don Wildman hosts.

Be careful where you walk--history's afoot! See a Vietnam that you've never seen before. During the Vietnam War the media flooded the world with images of soldiers and jungles. What wasn't seen were the tunnels, caves and passageways. Join host Don Wildman as he discovers the massive CuChi tunnel system that gave soldiers the upper hand to the super-bunkers and secret caves used as shelters.

Discover the fascinating and unknown history that lies below major cities around the world today. Explore these layers, which are often hundreds of feet deep. Discover everything form dank dungeons to underground shipwrecks that have been lost for centuries.

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 use 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.

When you think of Egypt, you think of the Pyramids, vast deserts and infamous leaders like Cleopatra. But there's more to the story. Underground Cairo is explored, focusing on ancient structures that have withstood time and countless invasions. Included: a step pyramid built a century before the Giza pyramids; and a tomb containing 2000-year-old mummies. Also examined: the Book of the Dead.

Constrained for space by a stone defensive wall and steep terrain, the people of Edinburgh build both high rises and subterranean dwellings to provide living space. Out of sight, the underworld attracts all manor of seedy activities.

Eric finds some knowledgeable guides to take him on a clandestine tour of the catacombs of Paris. Originally a limestone quarry, the vacant space produced its own utility and a rich history in war and in peace to hide things better kept unseen. But the catacombs also represent cracks in the foundation that threaten the stability of the city above the surface.

For thousands of years London has been among the most powerful cities in the world, below the busy streets and marketplaces another city hides--a city of Roman baths, secret crypts, lost rivers, indestructible bunkers that could hold up to 8,000 people, Winston Churchill's hidden war-rooms; host Eric Geller.

The largest naval armada in U.S. history descended on the Japanese island of Okinawa in April of 1945. Instead of a swift victory for the American's it became the bloodiest battle of the Pacific. Much of the battle wasn't on land it was underneath it--from the beehive of combat tunnels to the caves where thousands of civilians hid. Join host Don Wildman as he discovers what it was like to live through the Battle of Okinawa. Watch as he delves into the subterranean tunnels, caves, and bunkers, and then dives to explore the lost naval destroyer sunken deep in the waters off Okinawa's coast.

Visit the city of Bucharest, Romania and learn about its most famous citizen, Vlad the Impaler, more commonly known as Dracula. Travel underground as secret prisons, caves and dungeons are revealed. Only through the bleak subterranean stretches can one come face-to-face with the truth about this infamous Romanian ruler.

This program reviews Adolf Hilter's and Albert Speer's plans for a building boom that would turn Berlin into the capital city of the world. The plan included substantial below ground ...

100 years ago Portland, Oregon was a city full of vice, considered the most dangerous port in the world. It was a place where you could get drugs or booze or wake up trapped in a cell beneath the earth.

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

World War I was the bloodiest war the world had ever seen. A young Adolf Hitler served in the trenches and tunnels of Belgium's Western Front. Join host Don Wildman as he explores the subterranean web where 24,000 Allied soldiers waited to ambush the enemy, to the indestructible fortress that endured thousands of bombs daily. Discover the underground that made World War I one of the most brutal wars in history... and turned Hitler into the terrifying madman of World War II.

Istanbul is undoubtedly one of the most dynamic and exotic cities in the world. Once the capital city of three of the world's most powerful empires--The Roman, Byzantine, and Ottoman--its strategic location made it the perfect spot for empires to rise, fall...and rise again. Residents of Istanbul walk on top of remnants of these fallen civilizations...literally. Taxis drive over parts of Constantine's Lost Great Palace; children play on cobblestone streets concealing a massive Byzantine dungeon; a high school sits on a 3rd century wall leading to the bowels of a 100,000 seat ancient Roman Hippodrome; and basement's of old Ottoman homes lead to subterranean tunnels and secret cisterns. Join host Eric Geller as he leaves the buzz of the city streets behind and follows the pull of the past. Teamed with leading archeologists and experts, Eric peels back the layers of the past--to reveal a hidden history that hasn't seen the light of day for ages.

Be careful where you walk--history's afoot! 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.

Ethiopia is home to some of the oldest settlements in the world. This cradle of mankind is a country born from legend and shrouded in mystery. Underground Ethiopia is explored. Included: tombs of emperors; subterranean cathedrals; and the palace of the Queen of Sheba. Also: theories regarding the possible resting place of the Ark of the Covenant.

Don explores newly discovered ruins and caves in Croatia as he uncovers the true story of a formidable queen who dared to defy the mighty Roman Empire.

Much of modern Rome is built upon the foundations of the first century Roman city and was above Goraud at that time. Eric visits some of these ruins and his guides explain the activities that occurred there two thousand years ago.

Budapest is built upon on network of natural limestone caves that have been in use since humans first moved into the area. While exploring the caves Eric shares their color history which includes several violent periods in Budapest's past.

New York City's underground harbors secrets and surprises befitting the most important city on earth. Eric shares these secrets in tours under Grand Central Terminal, the Empire State Building, the World Trade Center and New York's original aqueduct.

The ancient world was shaped by people who believed they foresaw the will of God. Jerusalem is at the heart of all their fiery prophecies. From the outcome of bloody wars to the birth of saviors, Jerusalem has been at the center of prophetic revelations. Join host Don Wildman as he peels back the layers of this sacred subterranean landscape to uncover an ancient escape route, a secret bullet factory, and the birthplace of Jesus. He sets out to find the truth behind Jerusalem's most mysterious and enduring prophecies, the people who foretold them and what was left behind... underground.

Today, New York is the biggest city in the country... but it's got some dark secrets in its past. It was founded by covert groups, overrun with gangs and mob bosses, and ruled by secret societies. This is the true foundation of the city that never sleeps, and host Don Wildman is headed deep beneath the skyscrapers, taxicabs and street vendors into a New York that few have ever seen before. From a hidden Freemason tunnel and secret world of the Sandhogs, to mobster hideaways and gang escape routes, we're uncovering the secret societies that built New York--from the underground up.

Washington D.C. is headquarters for one of the most powerful governments in the world, as well as some of the nation's deepest secrets. The decisions made here echo around the world, so while the seat of power rests above these streets, our nation's security depends on what happens underneath them. From top secret, high tech superbunkers to the underbelly of Capitol Mall, we'll delve into DC's subterranean defenses. Don will discover how the US prepares for the worst...from the ravages of disease to nuclear catastrophe.

The mafia instills fear around the world, but in Sicily, its presence can't be ignored. This is where the mob got its start, with the help of the underground. We'll trace the Mafia's roots back to a vigilante secret society that created an underground network where they would hold trials against corrupt city officials and execute the accused. We'll track the escape route of a most-wanted mob boss through ancient subterranean waterways, and discover a bone-crypt that holds the key to Sicily's violent past. We'll even find out how the mafia teamed up with the Allies during WWII, undermining the Axis' line of bunkers deep within the hillside and embedding themselves into Sicilian society for good.