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 Boeing 737 leaving Panama City crashes into one of the most remote and treacherous jungles on the planet.

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.

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.

A high-flying tour of Pennsylvania.

Beauty of the Empire State; Central Park; tallest skyscrapers; mighty rivers; 17th century explorer Henry Hudson.

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

An aerial tour of New York City, spanning the city's five boroughs, capturing man-made and natural wonders; revealing the ways its citizens live, work and play.

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

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.

From battlefields where hundreds died to Beale Street where musical legends were born.

A small state has a whole lot of history.

Oregon's Cascade Mountains; Columbia River waterway.

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 damaged plane plunges Anchorage Airport into an emergency. A leak on a Coast Guard helicopter jeopardizes emergency cover. Rain turns the Fairbanks runways into ice rinks, and a dog-sled racing prodigy flies with furry teammates.

A father and son team of bush aviators flies a NASA expedition into the wilderness. A rookie airline pilot attempts a landing on a remote island. A seaplane mechanic starts a helicopter repair business, and customs agents.

A damaged plane plunges Anchorage Airport into an emergency. A leak on a Coast Guard helicopter jeopardizes emergency cover. Rain turns the Fairbanks runways into ice rinks, and a dog-sled racing prodigy flies with furry teammates.

A father and son team of bush aviators flies a NASA expedition into the wilderness. A rookie airline pilot attempts a landing on a remote island. A seaplane mechanic starts a helicopter repair business, and customs agents.

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.

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.

Three devastating crashes make front-page news around the globe; the media frenzy puts intense pressure on investigators to uncover the causes.

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

Seeing how international investigative teams must overcome differences to solve controversial plane crashes.

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.

Investigating the 2009 crash of Colgan Air Flight 3407; the plane stalls at low altitude and dives into a residential area near Buffalo, N.Y.

Moments after takeoff, a plane sustains electrical failures and crashes in the Florida Everglades, killing 110 people on board.

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

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.

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

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.

When a 737 careens off the runway in Indonesia, investigators uncover a shocking explanation for the crash.

Airplane crashes involving high-profile passengers put added pressure on investigators.

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

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.

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

When John F. Kennedy Jr.'s Piper Saratoga crashed in 1999, the NTSB faces big pressure to find the wreckage and the cause.

Passengers and crew escape a jet that skid off the runway before catching fire.

A damaged plane plunges Anchorage Airport into an emergency. A leak on a Coast Guard helicopter jeopardizes emergency cover. Rain turns the Fairbanks runways into ice rinks, and a dog-sled racing prodigy flies with furry teammates.

A father and son team of bush aviators flies a NASA expedition into the wilderness. A rookie airline pilot attempts a landing on a remote island. A seaplane mechanic starts a helicopter repair business, and customs agents.

When an airbus A330 loses both engines, its pilots must think of a solution before they crash into the South China Sea.

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.

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

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

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

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

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

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

A trip through Lima details the voyage's breathtaking scenery and engineering challenges.

The Indian Pacific is a four-day, 4,352-kilometre transcontinental journey across Australia, a trip which features the world's longest straight stretch of railway and steepest incline.

Go behind the scenes with NTV's two Italo trains - the AGV and the EVO - as they expand to cover more of the Italian railway network, connecting passengers from Turin to Venice, and Naples to Milan, on two of the world's fastest trains.

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

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

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

The Blue Angels run through their unique, specialized training.

On Europe's high-speed rail network, between Barcelona and Madrid, crews work to expand the infrastructure for a new train.

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.

The Glacier Express features cutting-edge technology to pull the train up the steepest slopes on its route across the Swiss Alps.

The White Pass and Yukon route was built in 1869 to take miners and supplies to the Klondike gold fields.

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

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.

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

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

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

Thanksgiving weekend and severe storms challenge the staff at Ted Stevens Airport with heavy traffic, heavy snow, and even a lightning strike.

An electrical failure, a rogue moose, and a supply run challenge the staff and pilots at Ted Stevens Airport.

The arrival of U.S. evacuees escaping the coronavirus outbreak in China; a daring helicopter airlift; punishing snow.

Record snowfall and vicious headwinds threaten the runways and a sea plane pilot.

The Ted Stevens crew faces a host of challenges, including a truck accident, a record day of snowfall, and the return of a wild moose.

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.

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.

Building an eco-friendly visitor centre in the permafrost on Colorado's Pikes Peak tests the team. A museum is constructed in a disused dry dock that's in danger of collapse.

Witness amazing buildings, bridges, lifts, and other structures that pushed structural concrete engineering to the edge.

A new Olympic and Paralympic museum tests engineers with its trailblazing accessible design. A dazzling curved glass skyscraper battles gravity in Milan. And a student center built under a noisy railroad.

Visiting London's Gherkin, Seattle's Evergreen Point Floating Bridge and Lyon's Musée des Confluences to uncover how and why they were built.

A towering bridge in France; upside-down hotel in China; Italy's forest into the sky.

A damaged plane plunges Anchorage Airport into an emergency. A leak on a Coast Guard helicopter jeopardizes emergency cover. Rain turns the Fairbanks runways into ice rinks, and a dog-sled racing prodigy flies with furry teammates.

A father and son team of bush aviators flies a NASA expedition into the wilderness. A rookie airline pilot attempts a landing on a remote island. A seaplane mechanic starts a helicopter repair business, and customs agents.

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 look at the fatal consequences that can occur when a fire breaks out on a plane; three flights that erupted in flames and the investigations that changed aviation forever.

On July 11, 1991, the crew of Nigeria Airways Flight 2120 unsuccessfully tries to return to the airport after a burst tire creates an in-flight fire which causes 247 Nigerian pilgrims and 14 crew to perish.

When the crash of a commuter plane in Georgia kills a NASA astronaut, a four-term U.S. senator and 21 others, the disaster grabs headlines around the world.

Confused, flying blind and lost in the dark, three crews lose sight of the horizon and fall into the same deadly trap.

Within five minutes of takeoff, the Dominican Republic bound Birgenair Flight 301 crashes into the Atlantic Ocean; a series of confusing signals crashes the plane.

A look at key naval battles that have taken place in the Persian Gulf over the last 50 years and the warships involved, from both sides of the conflicts.

A look at the smallest ships of war and the major roles they've played over the centuries, including the 1776 gunboat built to stop a British invasion and the HA-19 sub.

New high-tech investigations uncover what sunk a World War I cruiser, a World War II submarine, a British destroyer from the Falklands War, and more.

A look at how navy weapons have evolved over the centuries, from cannons to gun turrets to nuclear missiles and beyond.

Exploring maritime heroes who left their mark on history through their bravery and skill, including Larry Chambers, Ernest Evans, and Robert Smalls.

A look at riverine warfare from the Civil War to Vietnam and small but powerful combat ships.

Recounting some of maritime warfare's explosions, from world wars and Vietnam to the nuclear tests at Bikini Atoll.

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.

A look at the most famous wooden warships over the course of 500 years.

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.

A look at some of the rescue ships of the past 200 years of wartime and the brave men and women who risked their lives to save others.

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

During the Vietnam War, the United States needed a helicopter that could defend itself; the AH-1 Cobra, the world's first pure attack helicopter.

Electronic warfare aircraft; the EA-6B Prowler; the EA-18G Growler.

The history of the longest serving bomber in the U.S. military: the B-52 Stratofortress.

The 50-year evolution of the Army's top transport helicopter, the CH-47 Chinook.

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 Marine Corps' V-22 Osprey.

The F-15 Eagle's conquests in Iraq, Yugoslavia and even space.

Innovative engineering allows the P-38 Lightning to fly faster and climb higher than any other WWII warplane; a twin-propeller fighter with heavy armaments packed into its nose, the P-38 becomes one of America's premiere combat planes during the war.

The AH-64 Apache, one of the most heavily fortified and well-armed helicopters ever built.

Exploring the history of the F-18 and how the U.S. Navy's dual-role aircraft has dominated both the air and the battlefields for over three decades.

The inside story of the Harrier, the world's most famous short takeoff and vertical landing fighter jet.

Taking flight for a bird's eye tour of America's rivers, lakes and canals.

An aerial view of Arkansas, where settlers' westward journeys began and the scene of Bonnie and Clyde's most serious crime; a view of the land of raging rivers, vast wilderness and legends of the Wild West.

An amazing aerial tour over Utah reveals a state full of otherworldly landscapes and landmarks, including a history steeped in Mormonism, pioneering tragedy, and Olympic glory.

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

A cross-country aerial journey over America's most majestic and unique roadside attractions.

An aerial tour over New England captures its beauty while celebrating its rich history; from the Massachusetts harbours, where Americans rebelled against the British, to the autumn colours that blanket the mountains of Vermont.

Two identical plane crashes involving the same icy conditions and the same plane design are examined, revealing why neither disaster should have happened.

After a seemingly routine landing, a Boeing 737 erupts in flames, putting 165 debarking passengers and crew in jeopardy.

An investigation into Continental Airlines Flight 1713, which crashed on takeoff from Denver during a snowstorm in 1987, changes commercial flight forever.

A cockpit window on British Airways Flight blows out, partially ejecting and injuring the captain; the co-pilot completes an emergency landing.

An MD-82 crash lands in Arkansas during a severe thunderstorm; but investigators believe weather is not the main reason for the accident.

Avianca Flight 52 is delayed numerous times by bad weather en route; it is dangerously low on fuel as it attempts a landing at New York City.

The consequences are disastrous when ice forms on an airplane's wings; three planes are brought down by ice and it's up to investigators to determine how modern aircraft could possibly end up with frozen wings.

A crew argues with no runway in sight; a captain ignores a critical signal; an exhausted pilot picks a catastrophic time to try a new approach.

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.

A damaged plane plunges Anchorage Airport into an emergency. A leak on a Coast Guard helicopter jeopardizes emergency cover. Rain turns the Fairbanks runways into ice rinks, and a dog-sled racing prodigy flies with furry teammates.

A father and son team of bush aviators flies a NASA expedition into the wilderness. A rookie airline pilot attempts a landing on a remote island. A seaplane mechanic starts a helicopter repair business, and customs agents.

A look at the commercial flights that ended in disaster because of suspected murder-suicide.

When a commercial airliner goes down in eastern Ukraine in 2014, examiners must conduct an investigation in the middle of a war zone.

A Korean Airlines passenger plane is shot down by a Soviet fighter jet in 1983; political tensions nearly escalate into war.

A miraculous rescue is launched after a 747 plummets toward the Pacific.

Investigators face a mystery when Varig Flight 254 disappears without a trace over the jungles of Brazil.

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

White sand beaches; Blue Ridge Mountains; Charleston's Rainbow Row.

An aerial tour of Nevada; the state's deserts, ghost towns, neon cities and Hoover Dam; its history built on epic booms and busts.

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

The stories and sights of Hawaii's major islands.

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

An aerial exploration of Wyoming reveals the Cowboy State's controversial history while highlighting its breathtaking canyons and volcanic formations.

An aerial tour of Kansas shows a state with varied landscapes, scenic areas and historical conflict sites.

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.

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

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

Louisiana's wetlands and underwater oil fields.

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

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

Northern state's green forests; red-painted barns and sugar maples.

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.

A high-flying tour of Connecticut; exploring the safe harbors, buildings and rich maritime history; the home state of Mark Twain, PT Barnum and Katharine Hepburn; the exclusive Gold Coast, the Thimble Islands and the historic cities.

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

On June 27, 1980, Aerolinee Itavia Flight 870 crashes into the Tyrrhenian Sea near the island of Ustica, Italy; all 81 people on board are killed.

A Colorado commuter flight crashes five miles short of the runway and the reasons why rock the airline industry.

When an Illinois turboprop crashes after losing battery power, investigators uncover a series of errors made by the pilots.

Investigators hunt for answers when the pilots of three aircraft skip protocols, ignore their training and crash.

Investigators race to determine the cause of the deadliest single aircraft accident in history: the 1985 crash of Japan Airlines 123, which claimed 520 lives.

Ancestral home of the Abenaki Indians; Henry David Thoreau's first book; Mount Monadnock; New Hampshire is seen from the air.

A look at America's landmarks, including a view of bears catching clams in Alaska's rivers; a high-flying tour reveals Alaska's call of the wild spirit that has lured adventurers and dreamers north for centuries.

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

Great mountain ranges; coal-based economy.

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.

Soaring above the Cornhusker State's vast farms, towering spires, desolate badlands and gleaming cities.

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

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.

A sweeping tour over popular destinations in America, including the Badlands, Nantucket, the National Mall and more.

Zoom above, and below, some of the Golden State's greatest monuments.

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.

Record snowfall and vicious headwinds threaten the runways and a sea plane pilot.

The Ted Stevens crew faces a host of challenges, including a truck accident, a record day of snowfall, and the return of a wild moose.

Valentine's day delays loom when a squadron of F22 makes an unexpected landing; high winds threaten a helicopter's 600lb sling load; Aviators come to the rescue of a village without water.

Customs agents intercept a grenade launcher smuggled into the U.S.; a blizzard threatens to cut off a remote island airport; warm winter weather turns a village runway to mud.

Valentine's day delays loom when a squadron of F22 makes an unexpected landing; high winds threaten a helicopter's 600lb sling load; Aviators come to the rescue of a village without water.

Customs agents intercept a grenade launcher smuggled into the U.S.; a blizzard threatens to cut off a remote island airport; warm winter weather turns a village runway to mud.

Three FedEx employees must regain control of their plane when a coworker attacks them in midair.

Pilots attempt to land their Boeing 737 in an Indonesian river after losing their engines and electrical power.

Partnair Flight 394 loses control, breaks up in mid-air and crashes into the North Sea; the aircraft's vertical stabilizer vibrates loose during flight due to excessive wear on substandard bolts, sleeves and pins that have been illegally sold.

With its conductors sound asleep, a freight train fails to stop and collides with an oncoming passenger train, resulting in tragedy.

A 1994 terrorist bombing aboard Philippine Airlines Flight 434 forces its pilots into a daring emergency landing.

Pilots aboard a hijacked plane are forced to attempt an emergency landing at sea.

A design flaw sends American Eagle Flight 41-84 smashing into a cornfield outside of Chicago, killing all 68 people on board.

On 9 August 2007, Air Moorea Flight 1121 crashes shortly after taking off from Moorea Airport in French Polynesia, killing all 19 passengers and the pilot.

A surface-to-air missile cripples a cargo plane after it takes off from Baghdad International Airport.

British Midland Flight 92 slams into Britain's busy M1 motorway and it seems like a rare case of dual engine failure, but investigators learn the real cause was a tragic misunderstanding.

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 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.

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.

Valentine's day delays loom when a squadron of F22 makes an unexpected landing; high winds threaten a helicopter's 600lb sling load; Aviators come to the rescue of a village without water.

Customs agents intercept a grenade launcher smuggled into the U.S.; a blizzard threatens to cut off a remote island airport; warm winter weather turns a village runway to mud.

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.

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.

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

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.

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

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

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.

Passengers are treated like royalty on Indian Railways' Maharaja's Express.

Exploring Vietnam by rail aboard the Reunification Express; a three-day ride from Hanoi to Ho Chi Minh City rich in views of rivers, rice paddies and dragon fruit orchards; steeped in the nation's war-torn past.

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.

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.

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

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