Once-great triumphs of marine engineering now left to rust include a ship graveyard in Maryland.

A great metropolis has been discovered, buried beneath the pastures of the Danube.

Tourists explore the far reaches of northern Canada and gain exclusive access to polar bears on custom-built rovers; the Twin Otter aircraft drops much-needed supplies to isolated villages.

A soaring tour over Washington, D.C. explores the unique landscape, rich history and colorful story of the Nation's Capital.

Exploring the Milky Way from the mythology of ancient sky watchers to how scientists are mapping it from the inside out.

Examining the science behind the birth of the universe.

Arctic conditions continue to wreak havoc in British Columbia; Jeremy Birch is called upon to raise a concrete-hulled vessel.

Phil Risko's team at Northstar works fast to refloat a trawler that's been blown onto the shore of a national park in New Jersey; the team improvises to get it back to sea before it suffers further damage.

Jackie Kennedy's crucial role in the Kennedy years; Dolley Madison's role; Nancy Reagan's role as a First Lady.

Lady Bird Johnson, Edith Roosevelt and Betty Ford inherited the role of First Lady by chance during times when the nation was looking for stability.

Mary Lincoln, Eleanor Roosevelt and Laura Bush's role as First Ladies in calming the nation in times of war.

A look at how first ladies have changed their role through activism, brains and toughness.

An in-depth look at the life of Princess Margaret reveals how her rebellious behavior paved the way for the monarchy we know today.

From her brilliant performance during WWII to her demotion after the death of George VI to her continuing influence over Elizabeth II for half a century, the private life of the Queen Mother is explored.

The most photographed woman in world from 1985 to 1997 suffered from hounding from paparazzi but also promoted the charitable and humanitarian causes she cared so passionately about.

Actress Meghan Markle's upcoming marriage to Prince Harry is compared to the stories of other American actresses and heiresses who crossed the Atlantic to marry into nobility, such as Grace Kelly and Rita Hayworth.

In Jordan and Saudi Arabia, two cities, Petra and Hegra, are thought to have been centers of a "lost matriarchy.".

New evidence found in Egyptian sacred sites is revealing secrets about a forgotten succession of powerful female priests.

New discoveries reveal the astonishing role of women in the ancient world; from goddesses to matriarchies to witch trials.

The origins of the Greek mythology about Amazons may lie with the ancient nomadic warriors of the Eurasian grasslands; hailing from the Scythian tribes, these warriors controlled a swathe from Eastern Europe to Central Asia.

Ancient Rome encourages gladiator women to fight to the death in the arena; these young women cultivate the skills they need to survive these gladiatorial games but sometimes die for the sake of public entertainment.

The Agoojj are a small fighting force of women in West Africa that expands in the 17th century against the much larger Asante and Yoruba Kingdoms; this all-female regiment terrifies both the local populations and the Europeans sent to conquer them.

A war chariot and human entrails.

The downfall of the powerful Maya city of Palenque continues to mystify archaeologists today; now, investigators gain rare access to explore lost tombs to reveal the truth behind this legendary city and the mystery behind its enigmatic queens.

As they wore skirts and hats, made signs and sewed sashes, they were imprisoned, tortured with forced feedings and beatings; 100 years ago women finally won the right to vote.

How mammoths became extinct and an investigation to see if they can be brought back to life.

A wind farm depends on the all-terrain abilities of the Hagglund BV206 in Sweden.

A sky-high tour over Iowa explores its vast stretches of farmland, covered bridges and evolution from wilderness to statehood.

Mercury, one of the nearest planets to earth, has eluded astronomers' best efforts to learn its secrets until missions like Mariner and Messenger.

The Fermi Paradox asks why another civilization has not presented itself.

At the mouth of the Suez Canal, Lino Arosemena and his crew have a monster repair job of removing and refitting a 20-ton propeller.

Veteran salvor Paul Hay and his team rescue a clam-dredging crew's harvest lost in a storm off the New Jersey coast; following an annual cleanup operation in New Zealand that salvages fishing equipment gone astray.

Revisiting the life of a legendary woman whose story continues to gain new resonance over time, even now on the 400-year anniversary of her death in March 1617.

Two women designers construct one of the longest-serving liners in history; the dramatic shipwreck in the Canary Islands.

New evidence supports a Civil War legend that a freed female slave and a society lady in Virginia acted as spies for the Union.

An inside look at the making of a groundbreaking album that revisits and re-imagines early minstrelsy and American slave narratives.

As they wore skirts and hats, made signs and sewed sashes, they were imprisoned, tortured with forced feedings and beatings; 100 years ago women finally won the right to vote.

Female skydivers from all over the world attempt a world record; an airline mechanic rebuilds an old aerobatic plane to inspire a new generation; an aerobatic glider competition reveals the silent poetry of flying to the edge.

A family of wing walkers puts their daughter's boyfriend to the test, a real life superhero shows that you don't need a plane to fly, and a group of animal-lovers race against time to fly stray dogs to new families on the mainland.

Wayne Davis has the challenge of keeping both people and sharks safe as an aerial shark spotter; aerobatic pilot Kyle Fowler attempts an audacious stunt; a group of kids transcend their disabilities with the pilots of Challenge.

Red Bull Air Force performs a spectacular stunt; a young woman chases her dreams of flying with the help of her community; a late night flight with Grandview Aviation.

STOL drag racers face off in their annual competition. Legendary pilot Patty Wagstaff teaches two students what to do when things go wrong. Archer aviation hopes to change how we move as they work to get their EVTOL Aircraft into the sky.

The Civil Air Patrol and Air National Guard aim to protect the skies; a high-speed race that requires a special kind of training in Reno; Dave Edwards proves that anyone can fly with a little money and effort.

The early years of Cleopatra's life, during which she survives her upbringing in an incestuous, murderous family and goes on to forge a romantic and political alliance with Julius Caesar.

The story of Cleopatra's fall from grace in Egypt after the death of Julius Caesar; how Cleopatra tried to win the heart of Mark Antony, which turned out to be a fatal decision.

Join the hunt for a fabled treasure that could revolutionize our understanding of ancient Egypt: Cleopatra's tomb. Learn why a recently discovered mummified hand from the 18th century could be the key that unlocks the secrets of this hidden chamber.

Remembering one of the most adventurous female explorers and botanists of all time in a story of obsession, tragedy and ultimately triumph in Victorian England.

The story of Cleopatra's fall from grace in Egypt after the death of Julius Caesar; how Cleopatra tried to win the heart of Mark Antony, which turned out to be a fatal decision.

Finding out how the insidious 'standard man' makes it hard to find a place where the gap doesn't impact us.

A look at disused structures that used to be at the forefront of the world's power supply, including Budapest's Kelenfold Power Station and New York's Wardenclyffe Tower.

Nubian pyramids reveal the rise of female power in Ancient Kush; a shocking satellite image uncovers secrets of an ancient ancestral Puebloan site in New Mexico.

A special drone uses cutting-edge technology to fly deep into treacherous, hard-to-reach mountains on dangerous search and rescue missions, and a hi-tech ice machine works tirelessly at a Toronto airport to keep flights running in brutal conditions.

Explore the forests, shores, bridges and tunnels of one of American's 13 original states, New Jersey.

Examining Landsat 8, the advanced planetary explorer with a 900 million dollar price tag, which is designed to reveal complex and ever-changing details undetectable by the human eye.

Historical and modern examinations of constellations.

Capt. John Ward and his crew are called to raise a sunken houseboat near Pensacola, Fla.; the owner of the boat wants it back, but the current occupiers of the boat living in it don't want John's services; there've been reports of gunfire too.

John Ward and his crew are called to salvage a massive barge upturned by a storm in a canal; Hickory Scuba Divers work to salvage a valuable sailboat that's sunk at its mooring.

In April 1945, the Yamato, the largest battleship in history, leaves for Okinawa to destroy American warships and prevent their landing; weighing 70,000 tonnes and armed with 150 guns, it faced the U.S.

In May 1905, after a year of stalemate in the Russo-Japanese War, Russia's Pacific squadron arrives at the Tsushima Strait.

On D-Day and later in June 1944, the USS Texas helps silence batteries of German artillery and gun positions defending the landing beaches and the port city of Cherbourg.

Bad design, human error and the enemy sent great ships to tragic ends, like Britain's K13 submarine and HMS Hood, Sweden's 17th century Vasa, and Kublai Khan's fleet, sunk by the original kamikaze.

A look at experimental ships and revolutionary designers that have changed the tide of war through the centuries.

[EPG Series] A look at how technological advances over the centuries have led to bigger and faster combat ships and transformed maritime warfare.

Sit down with courageous civilians who got caught in the crossfire. Learn how an 11-year-old Jewish boy hid from the Nazis, meet an unjustly imprisoned Japanese-American who served his country, and relive a young woman's terrifying Blitz experience.

Uncover the luck and determination that helped POWs endure captivity, hunger, and acts of unthinkable brutality. Listen to the riveting stories of soldiers who survived infamous German stalags, Japanese forced-labour campaigns, and death marches.

Get insight into one of the war's most hazardous jobs: piloting aircraft. Explore the constant race to provide more aerial firepower, revisit one of the war's most daring raids, and hear from a glider pilot who risked it all the night before D-Day.

An orphaned bear cub flies to a new home, bush pilots bring life-saving medical machinery to a remote village, record snowfall threatens to close down Anchorage Airport for Thanksgiving, and the US Army prepares for airborne war.

A breakdown on the Fairbanks runway threatens a heavy-weight military jet's urgent mission; a rookie flight instructor faces a make-or-break flight; an ice-tour pilot races against Alaskan weather; a bush airline flies a 400-mile pizza delivery.

A major snowstorm disrupts Christmas travel in Anchorage; bush pilots aid an Arctic village after a fire; ice jeopardizes an airborne science mission; Customs agents combat a surge in illegal holiday food imports.

A Coast Guard chopper pilot battles winds in a mission that will decide her flying career; a mountain construction project gets an express aerial delivery of materials in Alaska-style; two bald eagles hitch a first-class ride.

A unique tour of Berlin hunts for little-known stories hidden in the city's famous landmarks, obscure sites, and even in the food.

Discovering how the key to Paris's revolutionary past is hidden in cobblestones and street design; skipping the Eiffel tower to climb the ugliest skyscraper in Europe instead.

A Coast Guard chopper pilot battles winds in a mission that will decide her flying career; a mountain construction project gets an express aerial delivery of materials in Alaska-style; two bald eagles hitch a first-class ride.

In the opening weeks of World War II, a German U-Boat Commander launches a shocking attack against the Royal Navy in its own home port.

A crumbling hill in the Peak District and dunes in California causes the closure of two roads; a route used by the French Resistance is closed in 2003.

An analysis of the secrets of long-lost human settlements, a mysterious Norwegian mound, pre-historic stone circle on the banks of the Tagus River, lost city in the cradle of civilization and more.

Exploring machines invented for human survival in the extreme cold across the planet.

A flight over Missouri explores the Show Me State's towering monuments, mighty rivers and spectacular Ozarks.

Studies are currently under way looking for evidence of dark energy in the movement of galaxies.

An exploration of the astrophysics of stars creating matter.

In the opening weeks of World War II, a German U-Boat Commander launches a shocking attack against the Royal Navy in its own home port.

In direct violation of Hitler's orders a German U-Boat Commander sinks a passenger ship on the first day of the war sparking an international crisis.

A mysterious pyramid built out of Cold War paranoia; a haunted prison; a cluster of structures in the Atlantic; the mystery of a secret structure on a mountain and an industrial compound are revealed.

Traces of a Russian hole to hell in the Arctic, a military base in America's wild west, and a strange looming tower are mysterious deserted engineering projects, and new discoveries reveal how they were built and why they were abandoned.

A secret Russian military base in the Gobi Desert; a strange complex in an American wasteland; a relic high atop a mountain.

A Russian hole to hell in the Arctic; a military base in America's Wild West; a strange, looming tower; the mystery of an abandoned alien Nazi structure and a Soviet monolith are revealed.

An inside look at how the world's most eminent structures define national identity and the engineering techniques used to create them.

Seven wonders of ancient Egypt are home to mysteries still unsolved thousands of years after their construction, and today, investigators use cutting-edge technology and forensic analysis to reveal new secrets of these colossal engineering marvels.

Top Gun flight instructors show the famous and prestigious training program in the sky, and reveal the tactics and techniques taught in the classroom and in the air; examining how the real Navy Top Gun came to be.

A look at the top U.S. military aircraft in America's modern arsenal, including the F-117 Nighthawk stealth fighter, the hybrid V-22 Osprey, and more.

A countdown of the most influential and impactful military planes of the Cold War, from America's B-2 to the Soviet's MiG-15.

A countdown of the ten greatest military planes of World War II, including the Japanese Zero, the Nazi ME 109, and the B-29 Superfortress.

Top Gun flight instructors show the famous and prestigious training program in the sky, and reveal the tactics and techniques taught in the classroom and in the air; examining how the real Navy Top Gun came to be.

After months of fighting in Europe, U.S. troops finally enter Germany; with their sights set on the city of Aachen, the Americans must break through two rows of bunker fortifications to capture the old capital.

In the autumn of 1944, Patton's Third Army approaches the heavily fortified region of Metz; after being turned back from Fort Driant, Patton's men target Fort Koenigsmacker a month later.

U.S. paratroopers that dropped into France before the D-Day landings battle Nazi defenders for a key bridge behind enemy lines.

When his company attempts to capture a small village, an American soldier, born in Mexico but raised in Texas, must crawl through an enemy minefield to capture two German machine gun nests holding up his unit.

A tour of the CIA's private museum reveals some of the agency's spy craft and the missions on which they were used.

Notorious Colombian drug lord Pablo Escobar's regime ended in a hail of bullets; he left behind a private zoo with African hippos; they escaped and are multiplying, wreaking havoc in Colombia.

World-famous mammoth expert Dick Mol traces the history of woolly mammoths.

Crawling down the Red River, the Amphibex protects those who live along it during the thaw, while the Hercules C-130 J takes to the Arctic skies of the Canadian North; preparing for summer exploratory missions is Swedish built icebreaker Oden.

Fly along the coast from Cape Agulhas, the Garden Route, Port Elizabeth to the Wild Coast. Stand at the precipice of time, and dive into a land that still stretches your imagination.

An exploration of the science behind the Anthropic Principle.

Charles de Salaberry is forced to rely on cunning tactics.

On Christmas morning 1944, an Allied merchant ship off the coast of Australia fights off a torpedo attack by a German U-Boat with its deck guns.

An American submarine commander manages to penetrate the defenses of a Japanese convoy in the Luzon Strait; the tables are turned, however, when the convoy's escorts go on the attack.

First-person accounts and rare color footage detail the final 100 days of World War II in Europe.

The war was over in Europe but in the Pacific one of the bloodiest battles was being fought; a look at the bloody and history-altering final 100 days of the Pacific War, shown through rare war footage and first-person accounts.

Lockheed is tasked with creating a plane invisible to Russian radar, capable of reaching an altitude of 80,000 feet and speeds of Mach 3.2.

Emerging as a rival to Boeing's 247, the rigorously tested twin-engine DC3 would eventually radicalize the aviation industry in 1934.

A double-decked monster designed to carry 800 passengers and revolutionize the highways of the sky.

A look at life in the Pacific before, during, and after the attack on Pearl Harbor, presented through home movies and combat footage.

Months after the Pearl Harbor attack, shock waves reverberate in every corner of the Pacific; Americans deploy to stem the enemy's advance; after culture clashes, Allied forces later bond over efforts to thwart Japan's move to control New Guinea.

In 1943, the United States engages in a new series of island-hopping invasions; the first stop is the Tarawa Atoll, where troops embark upon the largest amphibious invasion ever staged in the Pacific to fight one of the costliest battles of the war.

Clive Anderson and Mary-Ann Ochota try to find out why an ancient warrior tribe mysteriously vanished, and uncover an epic tale of Vikings, giants and the Loch Ness Monster.

Clive Anderson and Mary-Ann Ochota explore a mysterious giant hill figure and get drawn into ancient myths, local folklore and pagan rituals.

King Arthur's final resting place.

A great metropolis has been discovered, buried beneath the pastures of the Danube.

An inside look at how the world's most eminent structures define national identity and the engineering techniques used to create them.

Seven American engineering marvels are among the modern wonders of United States, and now, investigators use hidden records to decode and reveal the mysteries behind these historic American icons.

In the wake of the Spanish flu, the 1920s became the decade of flappers, jazz, and the speakeasy; for many, it was a time of unprecedented opportunity.

Teams of scientists come together to find the origins of COVID-19 in hopes of understanding it and preventing future pandemics.

As China grapples with the Coronavirus pandemic, the residents of one apartment block under lockdown face anxiety, unfamiliar roles, but also a renewed sense of community.

An inside look at how scientists and doctors around the globe united to understand, treat and develop a vaccine for COVID-19 in its first months.

The artists go on an emotional journey when they must create an artwork inspired by how they survived or thrived during the global pandemic; the artists reflect on their experiences of grief, loss, family and joy in the most personal commission yet.

Entertainer Cher and a team of vets, trainers, and more lead a large-scale effort to move a bull elephant from a rundown zoo to a faraway wildlife sanctuary.

Exploring how Israel was able to vaccinate 58% of its eligible population against COVID-19 in less than four months despite political strife and deep ideological divisions.

Diving into retrofits on the world's only underwater habitat, where NASA astronauts train for space missions; Mike joins a crack repair team who breathe new life into this oceanic environment after a global pandemic shut it down.

The Pyramid of Khufu is the only one of the Seven Wonders of the Ancient World which can still be seen in its original state.

At the heart of Saqqara, the largest necropolis in Egypt is the Step Pyramid of Djoser, built around 2600 BC.

Meidum is the least-known of the pyramids of Egypt as it stretches skywards to resemble a castle keep.

On the site of Dahshur, south of Cairo, are two revolutionary monuments which seem to be the first real pyramids.

The world has its focus on the Pyramid of Khufu in Egypt, but nearby on the Giza plateau, other architectural masterpieces stand the test of time.

Egyptologists believe there was a perfect pyramid, hidden in the sands of Abu Rawash, which served as a tomb for the pharaoh Djedefre.

The last remaining ziggurat structure contains secrets to the ancient Sumerian city of Nippur, and now, archaeologists use advanced technology to uncover mysteries behind the earliest known civilization in history.

The ancient city of Abydos contains some of the oldest Egyptian tombs and a buried temple linked to a mysterious death cult; now, archaeologists use cutting-edge drone imaging to investigate long-hidden secrets behind the first pharaohs.

By the summer of 1944, the United States is gaining the upper hand in the Pacific War with better training, troop numbers and supply lines; it aims for the heart of Japan's inner defense ring, engaging in a naval battle for Saipan in the Marianas.

Allied forces move to take the valuable islands of Tinian and Guam that threaten American air operations; meanwhile, Gen. Curtis LeMay is tasked with planning and executing a fire bombing campaign against Japan.

In April 1945, the Yamato, the largest battleship in history, leaves for Okinawa to destroy American warships and prevent their landing; weighing 70,000 tonnes and armed with 150 guns, it faced the U.S.

In May 1905, after a year of stalemate in the Russo-Japanese War, Russia's Pacific squadron arrives at the Tsushima Strait.

On D-Day and later in June 1944, the USS Texas helps silence batteries of German artillery and gun positions defending the landing beaches and the port city of Cherbourg.

A Russian-designed symbol of French pride and the Art Deco luxury that made it the most expensive ocean liner ever built; the fire that sank her in 1942, which may have been an act of Nazi sabotage.

Mapping the zigzagging path of a floating palace as it ferries U.S. troops to Europe during World War II; witnessing her smooth transition to peacetime cruise ship and mourning her disastrous end after she was sold to a Hong Kong shipping tycoon.

The pride and joy of Benito Mussolini's fleet, which was once the fastest liner on the Atlantic; discovering why she was never turned into a troop ship during the war, but remained a target for the Allies, who sank her after Italy surrendered.

On the site of Dahshur, south of Cairo, are two revolutionary monuments which seem to be the first real pyramids.

Maritime archaeologist Mensun Bound and his team search for the ships that sank in the South Atlantic Ocean during the Battle of the Falklands in World War I.

The discovery of a perfectly preserved, 110-million-year-old dinosaur sparks a prehistoric mystery.

Military search and rescue efforts in deadly arctic conditions rely on a specialized helicopter with unrivaled power and endurance, and special access reveals how it works; in the Alps, a monster snow blower keeps trains running in dangerous weather.

This is South Africa's journey from pre-human skeletons to modern Skyscrapers. View South Africa's mountain ranges, bustling cities and untamed wildlife from the air.

With her husband wounded, Laura Secord sets out to warn the British of a possible American attack.

Tecumseh forges an alliance with the British in pursuit of his dream.

After a spectacular collision and ensuing attack from a Japanese ship, an American submarine crew begins a desperate struggle for survival.

As carrier groups deliver destruction to Japanese strongholds, American subs risk everything to surface in enemy waters and rescue downed aviators.

Allies slug it out on the island of Peleliu in a campaign to pave the way for Gen. MacArthur's return to the Philippines; footage shows troops enduring the muddy muck in the Philippines; Japan unveils a devastating new tactic, the kamikaze.

By the spring of 1945, the United States begins to take back the Philippines; on Borneo, the Australians invade Labuan; when the United States invades Okinawa, Japan makes a strong stand and launches the biggest kamikaze attacks of the war.

President Harry Truman decides to drop the atomic bomb on Hiroshima and Nagasaki; Emperor Hirohito surrenders, and Gen. Douglas MacArthur arrives to oversee the country's occupation; mortal enemies must now become partners in Japan's rebirth.

The story of the 16th century warship Mars the Magnificent and the modern-day expedition that found her deep in the Baltic Sea.

The ships that made mighty empires, from the lone wolves that patrolled the high seas for imperial Britain to the USS Laffey's heroic WWII battle against kamikazes at Okinawa.

It is considered the largest sea battle in history: the Battle of Leyte Gulf in WWII was three days of ingenious strategy and white-knuckle combat between warships, aircraft and kamikazes.

A portrayal of a crucial September 1950 military operation that helped the UN and ROK gain the upper hand over North Korea in the Korean War.

A comprehensive look at the naval battle of Guadalcanal in November 1942 and the heroic efforts of U.S. sailors who held off powerful Imperial Navy.

Egyptian archaeologists discover a vast burial chamber filled with over a hundred coffins.

Archaeologists discover a mysterious 2600-year-old coffin with a remarkable secret.

Archaeologists in Saqqara discover an unfinished tomb dating to Egypt's Old Kingdom and uncover 4,000-year-old secrets about the family it was built for.

The discovery of a burial shaft filled with priceless gilded coffins provides insights into what happened when Greek rulers took over ancient Egypt.

The tragic story of Archduke Maximilian and the series of unfortunate circumstances that doomed his reign over Mexico.

New discoveries reveal caves and tunnels hidden beneath Mayan pyramids; archaeologists identify the location revered as the most sacred temple of all, the mystical center of the world, unlocking an incredible secret in the city of Chichen Itza.

Evidence of ritual murder, human sacrifice and cannibalism in the desert valley of Chaco Canyon, New Mexico.

In Spain, pilgrims walk the Camino de Santiago, ending with a visit to a shrine believed to hold the bones of Saint James the Great; new research suggests that the Camino may have been a sacred pathway long before the Christian age.

A U.S. Parachute Infantry Regiment rushes to protect a critical bridge from a Nazi battle group during the opening days of the Battle of the Bulge.

The story of the 16th century warship Mars the Magnificent and the modern-day expedition that found her deep in the Baltic Sea.

Clive Anderson and Mary-Ann Ochota try to find out why an ancient warrior tribe mysteriously vanished, and uncover an epic tale of Vikings, giants and the Loch Ness Monster.

The Yeti is a custom-made snow-eater that keeps a critical Alaskan airport open for business; experts reveal how cutting-edge engineering and the latest technology keep this machine running in the toughest conditions.

It is home to the world's largest inland Delta; the world's second largest game reserve; and the abundant wildlife of Chobe National Park. There is no other way to appreciate this country than from a giant's point of view.

John Norton leads Six Nations warriors against the invading Americans.

East coast shipper creates a private fleet to seize American ships.

The story of fast food is the story of the American Dream; from a converted streetcar in Wichita, Kansas, the humble patty goes on to global domination; fried chicken turns a serial failure into a serious success; a burger ends the Cold War.

Where earth meets sky: how the most thrilling and dangerous point at the top of the world continues to fascinate, and what it takes to conquer the Big One.

Archaeologists unearth a sacrificial skull, investigate a mummy, and crawl through underground tunnels as they embark on new digs in Pompeii.

Archaeologists find traces of a sea-battle that transformed Ancient Rome; archaeologists investigate how Rome rose to dominate the ancient world.

Archaeologists reveal how the Colosseum came to symbolize the might of Rome.

Archaeologists investigate the fate of Nero and his buried Golden Palace.

An exploration of Hadrian's Wall, the largest structure built by the Romans; experts examine the Wall, its forts, gatehouses, and garrison town to see how civilization and culture grew.

An exploration of Herculaneum, the twin to Pompeii that also got buried during a deadly volcanic eruption; the discovery of an intact skeleton, the first excavated in 25 years, helps investigators piece together the final hours of Herculaneum.

An inside look at how the world's most eminent structures define national identity and the engineering techniques used to create them.

Sit down with courageous civilians who got caught in the crossfire. Learn how an 11-year-old Jewish boy hid from the Nazis, meet an unjustly imprisoned Japanese-American who served his country, and relive a young woman's terrifying Blitz experience.

Uncover the luck and determination that helped POWs endure captivity, hunger, and acts of unthinkable brutality. Listen to the riveting stories of soldiers who survived infamous German stalags, Japanese forced-labour campaigns, and death marches.

Get insight into one of the war's most hazardous jobs: piloting aircraft. Explore the constant race to provide more aerial firepower, revisit one of the war's most daring raids, and hear from a glider pilot who risked it all the night before D-Day.

Two women designers construct one of the longest-serving liners in history; the dramatic shipwreck in the Canary Islands.

The German flagship Cap Arcona served as the set for the 1942 Nazi propaganda feature film "Titanic"; her end would be equally tragic, with an even greater loss of life.

In July of 1944, French resistance fighters called Maquisards declare a Free French Republic on the remote Vercors plateau in eastern France to support the Allied invasion of Normandy.

Five months after D-Day, the ground war finally arrives on German soil as British soldiers attack in the shadow of Hitler's infamous Siegfried Line.

After months of fighting in Europe, U.S. troops finally enter Germany; with their sights set on the city of Aachen, the Americans must break through two rows of bunker fortifications to capture the old capital.

The Pacific Coast of Australia is home to Sydney's architectural icons, Byron Bay's iconic beach breaks, perilous white-water adventures, and the Great Barrier Reef, the largest living structure on Earth.

When a body is discovered in a bombed-out London church, investigators race to determine if it was caused by the Nazi Blitz or a local killer.

Clive Anderson and Mary-Ann Ochota explore a mysterious giant hill figure and get drawn into ancient myths, local folklore and pagan rituals.

A helicopter made for extreme environments aids US Army rescue efforts in some of the most harsh conditions; a trio of small but capable tugboats moves cargo vessels through the busiest port of Alaska.

Endless-stretches of white sandy beach and majestic mountains soaring high above verdant valleys.

How humans discovered the planets and how they became a complex solar system.

Venus offers a complex story with its thick atmosphere and a substantial amount of matter.

The inside scoop on six of the wealthiest people in history; revealing how they became crazy rich.

In the wake of the Spanish flu, the 1920s became the decade of flappers, jazz, and the speakeasy; for many, it was a time of unprecedented opportunity.

The story of the construction of ancient Egypt's first pyramid, built 4,700 years ago to help the Pharaoh Djoser achieve immortality.

Exploring how Pharaoh Snefru shifted the pyramid age into high gear by ordering three massive monuments.

Exploring the final building phase of the Great Pyramid of Giza and the rituals that took place after a pharaoh dies.

Egyptologists try to determine who built the Sphinx and why by exploring the power struggles between Khufu's sons after the pharaoh's death.

A volcanic eruption in A.D. 79 that destroyed the Roman town of Pompeii, one of the world's most iconic sites.

A 4,000-year-old leather manuscript at the Cairo Museum sheds new light on The Book of the Dead from ancient Egypt.

The Ahnenerbe, an elite SS division, sets out to prove that sacred sites from around the world were part of a superhuman Aryan master race.

In April 1945, the Yamato, the largest battleship in history, leaves for Okinawa to destroy American warships and prevent their landing; weighing 70,000 tonnes and armed with 150 guns, it faced the U.S.

In May 1905, after a year of stalemate in the Russo-Japanese War, Russia's Pacific squadron arrives at the Tsushima Strait.

On D-Day and later in June 1944, the USS Texas helps silence batteries of German artillery and gun positions defending the landing beaches and the port city of Cherbourg.

Allied convoys resupplying the Soviet Union navigate the Arctic, infested with U-boats and enemy aircraft.

The world's most versatile and powerful helicopters, including the Huey that served as a rescue helicopter in Vietnam, and the Apache attack helicopter.

Exploring the world's top close air support aircraft, which enter battles at a minute's notice.

Allied convoys resupplying the Soviet Union navigate the Arctic, infested with U-boats and enemy aircraft.

The world's most versatile and powerful helicopters, including the Huey that served as a rescue helicopter in Vietnam, and the Apache attack helicopter.

Exploring the world's top close air support aircraft, which enter battles at a minute's notice.

The story of "America's first serial killer," who stalked Chicago in the 1890's, and how the police departments of two major cities finally brought him to justice.

Clive Anderson and Mary-Ann Ochota visit the Scottish island of Orkney and enter the lair of the legendary Hogboy to investigate a case of Viking treasure, lust and madness.

Salvor and treasure seeker Phil Risko sets out to retrieve valuable 80-year-old hardwood logs from the bottom of the sea; a multi-million dollar cruise vessel undergoes emergency repairs in Panama.

Hard to imagine that animals can survive in this arid land, but an aerial view of the life saving water holes will offer a rare glimpse of Namibia's wildlife.

Earth's closest neighbor, the moon, is the cosmic stepping stone to a future with the planets.

A fleet of spacecraft orbits, and sometimes lands on the surface of, Mars.

The inside track on five of the greatest heists in history; these are not petty robberies, but high-stakes operations meticulously planned and audaciously executed, with a cast of colorful characters from the mastermind to the snitch.

When the lost tomb of King Tut is opened in 1922, it's not only the famous Curse that is unleashed.

Finding out how the insidious 'standard man' makes it hard to find a place where the gap doesn't impact us.

Fundy National Park in southern New Brunswick.

Paid programming.

Exploring whether Druids were prehistoric hippies or bloodthirsty practitioners of human sacrifice; Clive Anderson and Mary-Ann Ochota explore Anglesey and consider cannibalism.

When a woman is found dead in the cellar of an Edinburgh doctor in 1828, police uncover a murky world where murders are being committed for money.

Julie Montagu visits a fellow American-born aristocrat in the Cotswolds to see how she turned Sudeley Castle into a popular visitor attraction and fairytale wedding venue.

The story of one of the world's most effective war machines: the Viking longship, seeing how its design evolved from swift war canoe to versatile and feared ship that would change the course of history.

In February 1993, a federal raid on religious group the Branch Davidians on the outskirts of Waco, Texas, leaves ten people dead triggers a 51- day siege; a look at whether the FBI and the ATF could have brought a peaceful resolution to the standoff.

Allied convoys resupplying the Soviet Union navigate the Arctic, infested with U-boats and enemy aircraft.

Responding to an emergency call, Northstar marine sets out to salvage a sunken tug in the Delaware Bay; following the devastation caused by Hurricane Sally, Capt. Chris Ward and his crew work to salvage sunken sailboats and wrecked powerboats.

Exploring whether Druids were prehistoric hippies or bloodthirsty practitioners of human sacrifice; Clive Anderson and Mary-Ann Ochota explore Anglesey and consider cannibalism.

When a woman is found dead in the cellar of an Edinburgh doctor in 1828, police uncover a murky world where murders are being committed for money.