Experts examine how the Chernobyl nuclear disaster and the Bhopal gas tragedy happened; they also explore the consequences and how they could have been avoided.

United Airlines Flight 718 and Trans World Airlines Flight 2 collide midair over the Grand Canyon in Arizona, killing all 128 people on both aircraft in 1956.

Experts examine how the Chernobyl nuclear disaster and the Bhopal gas tragedy happened; they also explore the consequences and how they could have been avoided.

A commercial airliner crashes minutes after taking off from an airport in Bucharest causing suspicions to rise.

Experts examine how the Chernobyl nuclear disaster and the Bhopal gas tragedy happened; they also explore the consequences and how they could have been avoided.

After touching down, a Taiwanese commuter plane is rocked by a massive explosion, but investigators find no evidence of a bomb on board.

A helicopter carrying offshore drilling workers crashes into the ocean, leading to an investigation that reveals a fatal flaw in the chopper's design.

A cleaning crew makes a careless error while cleaning a Boeing 757, affecting the plane's computer system and causing it to crash into the Pacific Ocean.

The investigation into the 2014 crash of a TransAsia flight uncovers a systemic problem with the airline.

Three planes fatally out of balance force investigators to question every calculation; it's a flight risk that's entirely preventable, and yet repeated disasters reconfirm the need for critical backup systems.

In one of the world's busiest airports, a large passenger plane crashes into a smaller one; a 1986 midair crash between planes near Los Angeles brings attention to disturbing congestion at airports.

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

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

The crash of a commuter flight to Detroit leads investigators to a cause the industry has known about for years.

Atlantic Airways Flight 670 careened off the runway and became engulfed in flames.

Caught in a major tropical storm, a 737 crashes just short of the runway on a Caribbean island, but the accident may not have been weather-related.

Air France Flight 296 fails to regain altitude after performing a fly-by during an air show at Mulhouse-Habsheim Airport.

A bomb explodes on Air India Flight 182 en route from Canada to India causing it to disintegrate over the coast of Ireland.

If pilots aren't prepared when the runway is in sight, a landing can quickly become a tragedy.

Flydubai Flight 981 enters a rapid descent and crashes nose-first at Rostov-on-Don Airport in Rostov-on-Don, Russia, after aborting its second landing attempt in poor weather conditions.

Devastating failures in the air put pilots to the test and shine a light on three feats of flying.

Experts examine how the Chernobyl nuclear disaster and the Bhopal gas tragedy happened; they also explore the consequences and how they could have been avoided.

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.

On 1 June 2009, Air France Flight 447 stalls and crashes into the Atlantic Ocean while flying through a thunderstorm, killing all 228 people on board.

The captain of a Navy cruiser must quickly determine if an approaching plane is friendly.

In a rush to complete their flights, three different flight crews skip key procedures, ignore signs of danger and make deadly decisions.

The pairing of a domineering pilot and an inexperienced first officer has deadly consequences in northern Minnesota.

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.

Norwegian Joy sails amid icebergs in Alaska's Inside Passage, treating guests to glaciers, humpback whales, and the largest zip line in the world.

The Paul Gauguin offers five-star luxury while sailing near the coral reefs, mountainous islands and tropical playgrounds of French Polynesia.

New luxury liner Le Soleal navigates the uncharted waters of Indonesia to give her passengers one-of-a-kind encounters at exotic destinations.

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

The Sky Princess carries passengers from Fort Lauderdale, Florida, to three Central American stops.

Switzerland's Bernina Express is one of three railway lines on the UNESCO World Heritage list; it navigates 55 tunnels and nearly 200 viaducts and bridges.

The Ghan takes passengers on a three-day, two-night journey through Australia; the Pichi Pichi Railway offers passengers a trip on an original steam locomotive train.

South Africa's most luxurious train - Rovos Rail - travel from Pretoria to Cape Town in classic cars pulled by a series of steam, diesel and electric locomotives.

The Norwegian Breakaway cruise ship sets sail on her first voyage, and her captain faces a tough decision when a North Atlantic tempest forms.

Follow the building of the Norwegian Breakaway at Germany's Meyer-Werft shipyard; it is the largest ship they've ever built and they have only 18 months to finish it.

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

Facing Australia's fierce heat, Celebrity Solstice provides guests with views of waterfalls, jumping crocodiles, koalas and the Great Barrier Reef.

Visit Stonehenge, kiss the Blarney Stone and hunt for Nessie on a magical tour of the British Isles, aboard Marina.

The Nolinor 737's flight crew ferries nearly 10,000 pounds of essential food, vital mining equipment and 57 miners to the Arctic, where bad weather wreaks havoc with the plane and the mission.

The highly-specialized North Rail Express container train travels from Narvik to Oslo, delivering cargo of fish as quickly as possible.

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

The Carnival Vista is the new flagship for one of the world's largest cruise lines, carrying more than 4,600 passengers and boasting 10 restaurants, nearly 2,000 staterooms and a crew of 1,400.

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.

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.

Costa Diadema's seven-day cruise around the Mediterranean offers Italian delights to its passengers and challenges to its captain and crew.

Royal Clipper is the largest sailing cruise ship in the world, celebrating tall ships of the 19th century while offering modern-day service for its guests.

Set a course for breathtaking sights on Koningsdam's 15-day voyage from Amsterdam to the northern tip of Norway.

Exploring the engineering and architectural masterpieces like The Copper in Manhattan to Gardens By the Bay in Singapore.

Engineers grapple with an apartment building, ripped apart by a man-made canyon; the Gateway Arch takes shape in St. Louis; an unpromising plot in Copenhagen, Denmark, is transformed by a gleaming new triangular office.

Alien port authority in Belgium; ultrathin skyscraper in Manhattan; hanging museum in Scotland.

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.

Peek inside a cloud-inspired library in Canada that's built over a live railway; see how clever engineering helped a huge Seattle skyscraper go up without harming its iconic neighbour, then cross an Australian bridge that floats above a busy river.

In Philadelphia, Mike is on streets, in tunnels, on tracks and in trolley restoration garages; he is working shoulder-to-shoulder with the team that keeps one of America's largest and oldest mass transit systems running smoothly and on time.

In Florida, Mike tackles one of the dangerous jobs on the planet, commercial diving; he helps a specialized team keep waterways safe; fixing construction site leaks and removing dangerous structures, all while hurricane season is in full swing.

Mike Davidson heads to Brazil, where an offshore crew is racing the clock to set up giant power ships to deliver electricity to a country in desperate need.

With wildfire season ahead, Mike works with an aerial firefighting company as they fix and convert aircraft into firefighting machines, including the transformation of a 1960's C130 plane from aged military aircraft into a stateofthe art waterbomber.

The engineering secrets behind a mobile research station in Antarctica, a gravity-defying concert hall on the Canary Islands, and a rotating boat lift in Scotland.

Visiting the Hearst Tower in Manhattan and Jewel Changi Airport in Singapore to understand how they were built; covering how designers and engineers attempt to create a museum worthy of Salvador Dali in Florida.

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.

Uncovering the design and engineering secrets behind the Grand Canyon Skywalk, the Audain Museum and more.

The inside stories behind a new, horseshoe-shaped complex in Rotterdam, a rock-shaped opera house in China and a makeover of the British Museum.

Experts examine how the Chernobyl nuclear disaster and the Bhopal gas tragedy happened; they also explore the consequences and how they could have been avoided.

When an A300 stalls and crashes just before landing in Japan, fears arise about the plane's complex automated systems.

On 26 May 1991, the thrust reverser on the number one engine of Lauda Air Flight 004 deploys in flight without being commanded, causing the aircraft to spiral out of control, disintegrate, and crash about 100 miles northwest of Bangkok.

On August 22nd, 1985, 55 people died aboard British Airtours flight 28M when its engine catches fire as it accelerates.

Just after takeoff from Honolulu, TransAir Flight 810 loses power and ditches in the Pacific. Both pilots survive, blaming dual engine failure-but when the Boeing 737 is recovered, the wreckage reveals a different cause behind t.

Investigators struggle to understand the unusual flight path and Himalayan crash site of Thai Airways Flight 311.

A helicopter carrying oil workers to an offshore drilling platform crashes.

Mistaken identity and hostile fire over enemy territory are among the many risks that pilots face in war zones around the world.

From corrosion and metal fatigue to faulty repairs, three doomed airlines are brought down by gradually deteriorating parts.

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.

Stories of espionage at sea, including deadly U-boat cat-and-mouse games during WWI, the sinking of the Lusitania, a gun-smuggling private yacht that made history, and liners turned troopships.

The legendary Battle of Trafalgar in 1805, which pitted Napoleon's French ships against a British armada under the command of Admiral Horatio Nelson.

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.

Examining some of maritime history's most effective lightning strikes; how the French frigate Nivôse set a trap to lure Somali pirates; how the HMS Illustrious captured a well-defended Mediterranean harbor in WWII; a surprise attack on Tokyo in 1942.

A look at how the art of deception was used by naval forces in the first half of the 20th century; in 1939, the German raider Atlantis is equipped with fake funnels, while its sailors dressed as women pushing prams to fool Allied merchant ships.

Revolutionary ship design helped Sir John Hawkins and Sir Francis Drake lead England to defeat the Spanish Armada and become a world power.

A look at Naval warfare's fastest combat ships and how the advantage of speed determined the outcome of some of the great seas battles of the last 150 years.

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.

The evolution from wooden ships to metal ones in the second half of the 19th century is examined.

The history of the B-1 Lancer reveals how the Cold War bomber evolved to become one of Americas most effective military aircraft.

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.

The inside story of the F-86 Sabre, one of America's first fighter jets, and its epic battles against the Soviet MiG jet during the Korean War and beyond.

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.

The rapid evolution of drones and how they're changing the future of aviation.

The inside story of the ultimate stealth fighter, the F-22 Raptor, and its predecessors.

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

The history of the KC-135 Stratotanker, the 60-year-old aerial refueler that keeps fighter jets flying.

The North American F-100 Super Saber, also known as the Hun, becomes a supersonic powerhouse after initial difficulties; it was used primarily in the Vietnam War.

The 35-year history of the UH-60 Black Hawk.

A look at how the C-47 evolved from passenger plane to a transport aircraft and flying hospital in WWII and years later as a gunship in Vietnam.

Stories of fighter aircraft and deadly combat, including dogfights with the P-38 Lightning and Messerschmitts over Nazi Germany, told through rarely seen battle footage and first-hand accounts.

The story of the world's first nuclear bomber, the B-29, and its explosive impact on aerial warfare.

An inside look at Japan's A6M Zero, the most feared fighter at the start of World War II.

A coast-to-coast aerial tour celebrates the best small towns in the United States and tells stories about the men and women who called them home.

The South's famous landmarks, historical milestones and unique culture.

An aerial tour of Florida's peninsula and panhandle celebrates the state's sights, unique history and lavish lifestyles.

The Lone Star's rugged canyons, historic ranches and modern cities.

A journey over America's western landscape featuring "wild" history and stories of colorful characters.

Tour the Wisconsin State Capitol and Milwaukee City Hall, once the tallest building in the world.

A cross-country flight over icy landscapes in Alaska's Denali, vast wetlands in Florida's Everglades, and over 100 million acres of badlands, deserts, and mountains.

When a USAF stealth bomber crashes after takeoff, investigators search for a reason.

When a modified WWII fighter plane crashes into the crowd at a Nevada air show, investigators struggle to find the cause.

A quick trip from Washington D.C. to Ohio in 1994 turns deadly when pilots of a twin-engine turboprop attempt a risky landing.

The two-man crew of a UPS cargo jet must attempt an emergency landing when a fire in the cargo hold fills their cockpit with smoke.

Investigators try to find the cause of two similar air crashes that happened nearly 12 years apart.

Polish Air Force Flight 101, carrying the President of Poland Lech Kaczynski, his wife Maria Kaczynska and other top officials, crashes in a wooded area while on final approach to Smolensk North Airport in heavy fog and low visibility.

A billion-dollar Stealth Bomber crashes at a U.S. Air Force base-the costliest aviation disaster ever; bad data misleads a charter flight into a Portuguese mountain and conflicting alarms send a cutting-edge jetliner plunging into the Atlantic.

With hidden flaws buried in their navigation systems, three planes suffer catastrophic computer errors that force investigators to dig deep for clues.

Moments before Pacific Southwest Flight 1771 crashes on a cattle ranch in California, gunshots are heard in the cabin.

When a twin-engine jet careens off the runway in Kentucky, investigators must determine why the plane failed to take off.

Experts examine how the Chernobyl nuclear disaster and the Bhopal gas tragedy happened; they also explore the consequences and how they could have been avoided.

In 1991, a Boeing 737 operating as United Airlines Flight 585 suddenly rolls into a dive and crashes within eight seconds, killing all 25 people on board.

When Germanwings Flight 9525 crashes in the French Alps, investigators discover shocking truths about the co-pilot's mental health.

On 27 November 2008, an aircraft on a post-maintenance test flight operating as XL Airways Germany Flight 888T stalls and crashes into the Mediterranean Sea off the coast of France, killing all seven people on board.

In 1999, EgyptAir Flight 990 crashes into the Atlantic Ocean while flying from New York City to Cairo, killing all 217 people on board; the cause of the crash is disputed.

Northwest Airlines Flight 255 crashes shortly after take-off in Detroit in 1987; a fatal preflight error caused the second-deadliest plane crash in the U.S. history.

Three crews experience the same devastating event; with radically different outcomes when an engine falls off their commercial airplane.

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

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.

A flight over North and South Dakota reveals the shared history and the vast differences of these sibling states.

An aerial view of New Mexico; exploring its landscapes and landmarks, while revealing its many legends and secrets.

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

A small state has a whole lot of history.

An aerial tour over Kentucky reveals a state of racetracks, country music highways, bourbon distilleries and a history of feuds and traditions.

The Empire State of the South; ancient Moundbuilders to the Cherokee Indians.

Oregon's Cascade Mountains; Columbia River waterway.

A high-flying tour of Pennsylvania.

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.

An aerial tour of the world's first national park showcases Yellowstone's diverse wildlife and rich history.

Contrasting the lush peace of the Pampas with the hustle of cosmopolitan Buenos Aires, Argentina; soaring over the obelisk, churches and soccer fields, then over the 200,000 square miles of fertile pasture plied by gauchos and their cattle.

Argentina's Patagonia is an environment of extremes, carved by ice and surrounded by violent seas; for wildlife, it's a rugged wilderness where survival is a daily battle; for humans, it's a must-see tourist destination.

There is no better way to witness Argentina, and its land of contrasts, than to experience it by air; this soaring tour stretches from one extreme to the next, from vast wetlands to some of the driest places on Earth.

An aerial tour over New Zealand showcases a diverse world of snow-capped mountains, active volcanoes, and a storied past.

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

The hot, dry extreme center of Australia is home to landscapes like nowhere else on Earth; fearsome apex predators, a town built by opals and Uluru, the cultural and spiritual heart of a nation.

The far south of Australia is home to the rich cultural heritage of Melbourne; a sporting mecca called the G; a brutal island prison once known as hell on Earth and ancient rainforests, providing a living link to the past.

Western Australia is home to colossal gold mines, massive sheep stations, the world's largest shark, a 4x4 trail; it has Perth, the most isolated big city on Earth.

A false warning in the cockpit triggers a series of pilot errors, sending a commuter plane crashing by the runway of an Amsterdam airport.

When a turboprop stalls and crashes into a North Carolina forest, investigators resort to a risky test flight-and uncover an industry-wide safety problem.

A plane with members of the Manchester United football team crashes while heading home from Yugoslavia, killing 23 aboard.

On 28 December 1978, the crew of United Airlines Flight 173 are preoccupied with a landing gear problem as the aircraft circles in a holding pattern in the vicinity of Portland, Oregon; it runs out of fuel and crashes in a sparsely populated area.

A day-long aerial tour of the New England city of Boston in Massachusetts; where Americans first rebelled against Britain by dumping chests of tea into the harbor and where rock band Aerosmith first made it big.

An aerial tour over the places made famous by America's most influential men and women.

A view of Idaho from the air reveals a state filled with agricultural fields, lands untouched by human hands, and riches in the form of gold, ski resorts and spuds.

Louisiana's wetlands and underwater oil fields.

A coast-to-coast aerial journey across America, visiting locations made famous by movies such as Rocky, Citizen Kane, Forrest Gump and others.

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

Home to some of America's highest mountains; Mount St. Helens.

Natural wonders, manmade marvels, hidden treasures and places of inspiration.

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 flight over Arizona explores the state's storied past, architectural achievements and landscapes, including America's natural wonder, the Grand Canyon.

An aerial tour over America's Great Plains tracks the prairies, farms, oilfields and wildlife.

Vast cotton fields, Gulf coast beaches; famous Civil Rights marches; NASCAR's most dangerous track; steel factories.

After taking off from Taiwan, a China Airlines 747 suddenly disappears from radar and crashes, killing 225 people.

Experts examine how the Chernobyl nuclear disaster and the Bhopal gas tragedy happened; they also explore the consequences and how they could have been avoided.

A 1966 landslide in Wales killed 116 children and 28 adults, and a 2019 dam collapse killed 115 people in Brazil.

A 747's cargo door opens at 23,000 feet, causing an explosive decompression that ejects nine passengers from the plane.

A 1966 landslide in Wales killed 116 children and 28 adults, and a 2019 dam collapse killed 115 people in Brazil.

When Air Transat Flight 236 runs out of fuel over the Atlantic, its pilots desperately try to keep their Airbus A330 in the air until they reach land.

A 1966 landslide in Wales killed 116 children and 28 adults, and a 2019 dam collapse killed 115 people in Brazil.

The U.S. Aviation Weather Center in Kansas City, Miss.; the importance of accurate weather forecasting to the aviation industry.

On 10 January 2000, Crossair Flight 498 crashes just two minutes after takeoff from Zürich, Switzerland, while heading for Dresden, Germany, killing all 10 people on board.

A team of experts investigates in detail the carnage of a cargo plane; an anonymous tip helps explain why a cargo plane crashed just moments after taking off from Miami.

Relying on instinct rather than the rule book, three flights end in tragedy when crews improvise on their final approach.

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

Near the end of its flight, Continental Express Flight 2574 suffers wing damage and goes into a dive falling out of the sky.

When an American cargo plane crashes moments after takeoff, investigators uncover a systemic problem with aircraft maintenance.

A Boeing 767 crashes miles from a South Korean runway; the investigation leads to contradicting stories between the surviving pilot and air traffic control.

Almost immediately after taking off from Madrid International Airport, Spanair Flight 5022 banked to the right, slammed into a creek and burst into flames.

Martinair 495 crashes on a rain-soaked runway in Portugal, showing how weather can doom a landing; American 1572 hits a storm and loses both engines amid a tower shutdown; crosswinds challenge an Air France crew already halfway down the runway.

An examination of three crashes that occurred when pilots battled against their sophisticated aircraft.

A private jet attempting to compensate for a late approach to the airport, slams into an Ohio apartment building just a couple of miles from the runway.

A high-stakes demonstration flight in Indonesia turns catastrophic when a Russian jet slams into a mountain.

A complex recovery operation is launched to find out if a 747 which disappeared into the Indian Ocean was carrying illegal weapons.

Pilots are prepared to cope with a range of emergency scenarios, but failures in training can lead to catastrophe in the cockpit.

A look at three deadly air disasters that are caused by misunderstandings between pilots and air traffic controllers.

A 1966 landslide in Wales killed 116 children and 28 adults, and a 2019 dam collapse killed 115 people in Brazil.

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.

A commuter turboprop crashes onto hilly terrain in New Zealand; the search for answers inevitably leads to the cockpit.

Joining NTSB and military experts as they work together to uncover how a fighter jet could collide with a civilian flight.

Landing at one of the world's most challenging airports, a passenger plane comes in like a fighter jet and crashes, killing 51 of the 71 people aboard.

On Jan. 3, 2004, Flash Airlines Flight 604 banks to the right just after takeoff and crashes into the Red Sea, killing all 148 people on board.

Three aviation disasters are all linked to breakdowns in vital security measures.

History's most terrifying air disasters, and the investigations that followed, are revisited and reexamined.

Take a river tour through some of Europe's greatest cities--Budapest, Vienna, and Amsterdam--on Viking Longship Gefjon.

Azamara Journey travels the rivers of Southeast Asia, delivering passengers to exotic cities and hidden treasures that larger cruise ships cannot reach.

We follow passengers and crew aboard Viking Star during its two-week tour from Barcelona to its home port in Bergen, Norway.

The new Viking Sea cruise ship whisks guests away on a journey across the Arctic Circle and into the heart of Norway.

Take a cruise where the guests choose the ports to visit and the captain and crew work overtime to make it happen.

The only cruise ship designed specifically to navigate the treasures and dangers at the southern tip of South America.

The Rocky Mountaineer travels across western Canada and over the Rocky Mountains.

A trip aboard the luxury tourist train, Transcantábrico Clásico through Northern Spain along a historic 19th century rail line.

Travelling up the coast of New Zealand in style aboard the Coastal Pacific, a train that embodies the nation's spirit of grit and determination; for two years, this ride was shut down due to an earthquake in 2016.

The maiden voyage of the Oasis of the Seas, the largest, most revolutionary cruise ship in the world.

Filled with big toys, guests fly the trapeze, surf and skydive without ever leaving the world's most innovative cruise ship.

The world's top cruise ship, the Crystal Serenity visits Sydney harbor, the port of Melbourne, Bali, a large-scale furniture load in Semarang, Indonesia and the port of Singapore.

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

One of Holland America Line's largest cruisers makes its debut in the Caribbean, highlighted by a visit to an exclusive private island resort.

Baffinland Mines needs to get equipment to a remote mine in Nunavut, to support shipping operations for the summer; they hire one of Volga-Dnepr's Ilyushin-76.

Japan's Tokaido Shinkansen, known as the bullet train, operates on a dedicated railway line at up to 177 mph.

Experience romance on a mega cruiser that pampers its guests with the best of Italian design and American convenience.

The world's latest, most-advanced expedition cruise ship Roald Amundsen whisks passengers on an adventurous voyage to Antarctica.

A trip aboard one of the world's most expensive and sought-after train rides details the journey for both passengers and crew.

The prairies of Canada; the deserts of Australia; the cold of the Norwegian Arctic Circle; the steepest slopes of the mighty Swiss Alps.

Japan's largest cruise ship brings East and West together on a cruise featuring cherry.

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.