In late 1944 Hitler forces the Americans into their biggest and bloodiest battle of the war when he launches a surprise attack into liberated Belgium.

New colourized footage and testimony reveals the cost of victory, the aftermath of war and the liberation of the camps and the destruction of Germany.

Personal accounts of the atomic attack on Hiroshima in 1945; the comprehensive story of the bombing of Hiroshima, from those who built it, dropped it, and survived it.

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.

Hitler unleashes the full wrath of his military might.

The darkest days of the war are covered; Germany conquers France; British civilians endure the Blitz.

As the war continues into 1941, the conflict goes truly global with the savage battle for Moscow and Japan's surprise attack on Pearl Harbor.

America joins the war; the conflict rages in South-East Asia, North Africa and Russia; the Nazis instigate The Final Solution.

The death toll rises as the war reaches its conclusion.

The Allies' heroics keep Hitler from advancing; the Red Army arrives in Berlin.

Vessels that operate in secret, unseen by their enemies, from secret missions that helped win World War II to modern stealth ships using strange shapes and technology to avoid spying ears and eyes.

The evolution of amphibious assault vehicles, including the restoration of Britain's last surviving LCT 7074 landing craft, designed to carry six Churchill tanks.

A look at how the role of battleships changed over the course of the First and Second World Wars.

A retelling of the D-Day invasion and its critical naval operation involving an armada of diverse and ingenious vessels.

The most-produced bomber in US history, used during World War II by every branch of the American military, as well as by the Royal Air Force.

The inside story of the Avro Lancaster, the British bomber that was rushed into service to fight back against Nazi Germany.

The Boeing B-17 Flying Fortress is one of the most lethal bombers of the U.S. Air Force in WWII's European and Pacific campaigns; among other things, the plane delivered food to the German-occupied Netherlands.

A look at the rise and fall of the infamous Nazi dive bomber Ju-87 Stuka, an aircraft of World War II.

The Spitfire's legend and role in the Battle of Britain.

Germany devastated Allied ships in the Atlantic, thanks to the new wolf pack tactic in 1940.

The Nazi campaign to send U-boats across the Atlantic to the U.S. at the beginning of Operation Drumbeat.

U.S. submarine skippers change the course of the WWII after entering the war and taking the fight to Japanese warships.

A 3-day clash between Nazi U-boats and Allied ships in March of 1943 marks a major turning point in World War II.

In June of 1944, American skipper Sam Dealey leads a rescue mission in Borneo.

Submarine skipper Dick O'Kane and the USS Tang sink Japanese ships through 1944, until their reign is threatened.

Germany devastated Allied ships in the Atlantic, thanks to the new wolf pack tactic in 1940.

The Nazi campaign to send U-boats across the Atlantic to the U.S. at the beginning of Operation Drumbeat.

U.S. submarine skippers change the course of the WWII after entering the war and taking the fight to Japanese warships.

A 3-day clash between Nazi U-boats and Allied ships in March of 1943 marks a major turning point in World War II.

In June of 1944, American skipper Sam Dealey leads a rescue mission in Borneo.

Submarine skipper Dick O'Kane and the USS Tang sink Japanese ships through 1944, until their reign is threatened.

A look at the amphibious aircraft and the many roles it served during WWII, from patrol bomber to search-and-rescue aircraft.

A look at the British multi-role fighter aircraft; the de Havilland Mosquito was used in the Second World War as a bomber, fighter and reconnaissance aircraft.

The overlooked underdog of British fighter planes; fast and versatile, the dogfighter doubled as a bomber and ground support aircraft in every theatre of WWII.

An inside look at the P47 Thunderbolt and the critical role it played in both the European and Pacific Theaters of World War II.

The Spitfire's legend and role in the Battle of Britain.

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.

From tests in the River Thames, to the German's deadly U-boat attacks in World War II, this episode explores the silent threat of submarines.

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.

The crew of the USS George H.W. Bush aircraft carrier prepares to give air support to ground troops battling ISIS in Iraq.

A behind-the-scenes look at the operations of a U.S. Navy aircraft carrier; the dedicated sailors who keep it running at maximum efficiency.

From the USS Langley to the high-tech floating airports; the history of the aircraft carrier and how its air wing operates.

A behind-the-scenes look at how the U.S. Navy's radically redesigned Ford-class aircraft carrier was built.

An elite group of British paratroopers launch a midnight raid in order to capture Hitler's unusual radar equipment.

American paratroopers are dropped behind German lines on D-Day in order to secure territory behind the beaches.

British Commandos raid two occupied Norwegian islands to wipe out fish oil factories used to make explosives.

The first invasion of the Italian Campaign of WWII: Operation Husky.

A secret British regiment in 1942 led a daring raid on a Nazi-occupied Libyan harbor.

An elite squad of Norwegians destroy a power plant in 1943 that the Nazis may have been using for nuclear weapons research.

An elite group of British paratroopers launch a midnight raid in order to capture Hitler's unusual radar equipment.

American paratroopers are dropped behind German lines on D-Day in order to secure territory behind the beaches.

British Commandos raid two occupied Norwegian islands to wipe out fish oil factories used to make explosives.

The first invasion of the Italian Campaign of WWII: Operation Husky.

A secret British regiment in 1942 led a daring raid on a Nazi-occupied Libyan harbor.

An elite squad of Norwegians destroy a power plant in 1943 that the Nazis may have been using for nuclear weapons research.

From tests in the River Thames, to the German's deadly U-boat attacks in World War II, this episode explores the silent threat of submarines.

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 retelling of the D-Day invasion and its critical naval operation involving an armada of diverse and ingenious vessels.

The inside story of the Avro Lancaster, the British bomber that was rushed into service to fight back against Nazi Germany.

The Boeing B-17 Flying Fortress is one of the most lethal bombers of the U.S. Air Force in WWII's European and Pacific campaigns; among other things, the plane delivered food to the German-occupied Netherlands.

A look at the rise and fall of the infamous Nazi dive bomber Ju-87 Stuka, an aircraft of World War II.

The Spitfire's legend and role in the Battle of Britain.

Gordon Welchman's top-secret work helped defeat the Nazis and impacted modern codebreaking.

The remarkable story of Hitler's last will and testament, from his surprising discovery to the family dispute he triggered and the new ideas he offers about the Führer.

Dan Snow follows treasure hunters as they hunt for a missing train full of gold; Dan carries out his own investigation into this extraordinary story, one that leads all the way to Adolf Hitler himself.

For the first time in 70 years, forensic archaeologists have been granted access to the Treblinka death camp, which suddenly disappeared in 1943, along with some 900,000 victims.

Auschwitz survivors explore the railways' part in the Nazis' mass murder.

Rare archive footage charts the German Army in 1940 as it unleashes a new Blitzkrieg tactic.

Cameras roll as Nazi Germany launches an all-out assault on the Soviet Union.

Footage of life and death on the battlefield of El Alamein and behind the lines in the African desert.

The story of the greatest tank battle the world has ever seen.

Eye-witness accounts from those who fought in the US military's bloodiest battle on the European front in World War II.

Incredible footage, colourised for the first time, chronicles the final days of the Third Reich and the brutal battle for Berlin, though German defeat looked certain. Nazi soldiers persisted fighting despite the inevitability of their downfall.

Rare archive footage charts the German Army in 1940 as it unleashes a new Blitzkrieg tactic.

Cameras roll as Nazi Germany launches an all-out assault on the Soviet Union.

Footage of life and death on the battlefield of El Alamein and behind the lines in the African desert.

The story of the greatest tank battle the world has ever seen.

Eye-witness accounts from those who fought in the US military's bloodiest battle on the European front in World War II.

Incredible footage, colourised for the first time, chronicles the final days of the Third Reich and the brutal battle for Berlin, though German defeat looked certain. Nazi soldiers persisted fighting despite the inevitability of their downfall.

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.

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.

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.

Rare archive footage charts the German Army in 1940 as it unleashes a new Blitzkrieg tactic.

Cameras roll as Nazi Germany launches an all-out assault on the Soviet Union.

Footage of life and death on the battlefield of El Alamein and behind the lines in the African desert.

The story of the greatest tank battle the world has ever seen.

Eye-witness accounts from those who fought in the US military's bloodiest battle on the European front in World War II.

Incredible footage, colourised for the first time, chronicles the final days of the Third Reich and the brutal battle for Berlin, though German defeat looked certain. Nazi soldiers persisted fighting despite the inevitability of their downfall.

America's first victory in the Pacific during World War II is retold from the vantage point of the three U.S. attack planes as they overcame the enemy ambush to face off against the Mitsubishi A6M Zero, a long-range fighter, in the air.

How the legendary "Dambuster" bomber squadron of WWII fooled Nazi Germany into believing the Allied invasion was going to be at Calais, rather than Normandy, and went to on to destroy Hitler's super weapons.

On D-Day, Allied forces land in Normandy, France, to beat back the German troops and liberate France; previously unseen archival footage captures the 85-day struggle to liberate Europe and includes rare images of the battle itself.

In 1944 the Allied invasion of Nazi-occupied Europe brings the hope of freedom and the devastation of war to the people of France.

New colourized footage and testimony reveal the true cost paid by the Allies and civilians to free Belgium and the Netherlands from Nazi occupation.

In late 1944 Hitler forces the Americans into their biggest and bloodiest battle of the war when he launches a surprise attack into liberated Belgium.

New colourized footage and testimony reveals the cost of victory, the aftermath of war and the liberation of the camps and the destruction of Germany.

Personal accounts of the atomic attack on Hiroshima in 1945; the comprehensive story of the bombing of Hiroshima, from those who built it, dropped it, and survived it.

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 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.

Alpine valleys; Rocky Mountains; Denver's towering skyscrapers.

An aerial journey over Ohio showcases the Buckeye State's autumnal vistas, majestic rivers, epic skyscrapers and battlegrounds.

One of the most beautiful states on the Atlantic Coast.

Taking an aerial tour of Virginia.

A flight over Indiana explores the Hoosier State's rich agriculture, busy highways and basketball legends; exploring the War Memorial and the Angel Mounds of the southwest.

An aerial view of major cities in the United States, including Los Angeles, Miami, Chicago and Boston.

An aerial tour over Dallas and Fort Worth highlights the cities' differences while showcasing their shared contributions to the Texas narrative.

Mississippi from above; the state's unique beauty and history; mighty waters, ancient trails and the birth of the Delta Blues.

A soaring tour over Southern California explores the stunning beaches, vast deserts, sprawling city and unique culture.

A coast-to-coast tour over America's man-made structures, old and new; the Statue of Liberty and the Golden Gate Bridge.

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

An aerial journey across Montana celebrates the Treasure State's adventure-filled history while showcasing its sprawling farms and rugged terrain.

A new performance center with a tent-like glass-and-steel lobby tests engineers in Kansas City; two twisting apartment towers make heads spin in Ontario.

Exploring the design and engineering stories behind D.C.'s Museum of African American History, the Montreal Tower and the Equinor building in Oslo.

Traveling from Canada to Belgium to the Southern U.S. to examine an eye-popping school, museum and railway station and reveal how they were built.

A 284ft wooden skyscraper built from 1,200 bespoke pieces tests fire safety limits in Milwaukee. A decaying Amsterdam crane track transforms into elegant glass offices.

An unstable high rise, an otherworldly museum, and a towering cliffside elevator.

A 284ft wooden skyscraper built from 1,200 bespoke pieces tests fire safety limits in Milwaukee. A decaying Amsterdam crane track transforms into elegant glass offices.

A ride on the Panama Canal Railway reveals the track repairs, engine overhauls and dangerous searches involved in keeping vital freight runs rolling.

A 284ft wooden skyscraper built from 1,200 bespoke pieces tests fire safety limits in Milwaukee. A decaying Amsterdam crane track transforms into elegant glass offices.

When a British tycoon and his family die in a 2017 Australian seaplane crash, investigators spend over two years searching for the reason behind the tragedy.

Fifteen minutes after taking off from Puerto Vallarta for San Francisco, the pilots of an MD-83 realize something is very wrong with their plane.

A passenger ferry sinks after crashing into rocks off the coast of a Greek island, killing 82; it leads to a shocking investigation.

Investigators try to figure out why a private Learjet carrying Payne Stewart went rogue before crashing in a South Dakota hayfield.

A sky-high tour over Minnesota reveals the state's ancient, glacial landscapes and tells the stories of the pioneers who helped build the nation.

Viewing Oklahoma from the sky reveals a state filled with tall-grass prairies and man-made wonders; the Dust Bowl, Tornado Alley and buffalo-filled plains; it also shows a history steeped in tragedy and devastation.

A high-flying tour over Illinois; the Windy City, prairies and rivers; the state's dramatic history of great fires, crime and historic battles; Chicago's unique skyscrapers and the Lincoln Tomb.

A cross-country flight across America reveals the nation's most iconic industries, the people behind them and the stories of how they came to be.

The Wright Brothers gave the state its slogan "First in Flight"; civil rights leaders in Greensboro; NASCAR.

The world's largest volcanic island; Iceland's landscapes, forged by fire and ice; a tour over Alaska, the residents it attracts and the wildlife that thrives in these unique surroundings.

From pilot error to meltdowns within air traffic control, investigators dig deep into three mid-air collisions that seem to defy logic.

A trio of crashes reveals that when the nuts and bolts of maintenance go unchecked, it can spell catastrophe.

When basketball legend Kobe Bryant is killed in a helicopter crash in Calabasas, investigators examine the data, the wreckage, and the pilot's actions for clues.

Bad weather and a series of errors lead to the 2001 crash of a plane on its approach to Zurich Airport.

When an aircraft loses total engine power, a pilot's training can make all the difference in the world, but it's still up to investigators to determine what went wrong.

When critical instruments in the cockpit can't be trusted, the consequences can be fatal.

A runway collision at a small airport turns tragic when passengers cannot escape the burning aircraft.

Three flights ending in tragedy, prove that minor missteps during takeoff can have disastrous consequences.

Investigators struggle to determine why a 757 strayed off course during its final approach to a Colombia airport and crashed into a mountain.

Experts investigate an unfortunate string of events that caused the freshly serviced Air Astana Flight 1388 to become completely uncontrollable.

A 284ft wooden skyscraper built from 1,200 bespoke pieces tests fire safety limits in Milwaukee. A decaying Amsterdam crane track transforms into elegant glass offices.

The cockpit window of an Airbus A319 explodes; pilots miraculously land the out-of-control plane; investigators must determine how the freshly serviced aircraft was released with a fatal flaw.

In September 2006, a brand-new legacy business jet collides with a Boeing 737 over the Amazon forest.

Investigators must figure out why the safety systems of a turboprop plane failed to prevent a crash into an Indonesian mountain.

When a commuter flight crashes mysteriously just a mile from a Missouri runway, investigators turn their attention to the final seconds in the cockpit.

Design innovations evolve as a result of terrible air disasters due to pressurization failure or explosive decompression.

Experts investigate the West Air Sweden Flight 294 crash and how the cargo jet nosedived into the Swedish Arctic at speeds nearing 600 mph.

When a Bulgarian airliner is taken over by violent hijackers, the crew and authorities on the ground devise a daring plan to save the airliner.

We hop aboard a seven-day cruise to the Canary Islands and Madeira aboard the first large liner to run purely on cleaner-burning liquefied natural gas.

Sailing from Chile and Peru to Ecuador and Costa Rica, the luxurious Seven Seas Explorer cruise ship is full of marble, granite and almost 500 chandeliers.

Cruise among the icebergs of Greenland and the Canadian High Arctic aboard the expedition cruiser Ocean Endeavour.

This 50-year-old ocean liner offers off-season Baltic tours, battling unpredictable weather to deliver one-of-a-kind experiences.

Follow mega cruiser Regal Princess as she whisks guests to Germany, Russia, and Scandinavia in style.

A crew of 2,200 on the Symphony of the Seas tends to more than 5,500 passengers as they sail to ports in Spain, France and Italy.

Hector Rail's trains haul timber to a pulp mill in Ostrand, Sweden on some of the most difficult railways in the country.

Two magnificent journeys with New Zealand's KiwiRail: the TranzAlpine, a five-hour journey across 223 kilometers, and Northern Explorer, an 11-hour trip through five unique regions of the North Island.

Passengers on Ecuador's Tren Crucero experience a dangerous rail journey, which includes tropical jungles, volcanoes and the Devil's Nose.

The world's most adventurous cruise ship, MS Fram, battles ice-choked fjords of Greenland to visit wildlife and icebergs.

MSC's biggest cruise ship navigates tight Mediterranean harbors, offering a brand new water park, classic excursions and Cirque du Soleil at Sea.

Le Boreal is built to take on the demanding waters of the Southern Ocean.