A DC-6 flies into fuel-freezing weather to deliver vital medicine. A rookie Coast Guard rescue swimmer faces his final helicopter test.

Two pilots try to build a new bush plane from 70-year-old designs. The Army gets its big guns airborne to protect America's north. Hurricane-force winds threaten Anchorage International, and NASA scientists blast off from Alaska.

A pilot races to fly food to a homesteader. Entrepreneurs reviving a 1940's airframe land on ice to prove it can be the future of bush flying. Trainee plane mechanics face a crucial test, and an airport night guardian calls time.

The Coast Guard flies a twelve-ton fuel truck to keep a remote base operational. An athlete flies to a dangerous airport for a glacier race. Fairbanks crews fight an avian invasion, and after a decade in a museum, a Grumman Goo.

Garuda Indonesia Flight 152 crashes into mountainous woodlands while trying to land at Polonia International Airport in Medan, North Sumatra, in low visibility.

A look at the fate of United Airlines Flight 232 which crashed into Sioux City's runway in 1989; it caused a subsequent explosion that left 111 people dead.

The 2000 crash of an Alaska Airlines plane just off the California coast leads to a disturbing discovery about the company's cost-cutting procedures.

A look at several air disasters that involved small components that failed; accidents caused by minor defects or errors; how the follow-up investigations led to changes that have made flying safer.

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 200-year evolution of the submarine in wartime is examined, told by the designers and engineers behind the machines.

An up-close look at the naval carriers, destroyers, and nuclear submarines of the Cold War.

Stories of historic Black struggle for equality in maritime combat; an enslaved powder boy who served during the French and Indian War; a Civil War gunner; the first African American to command a vessel with a fully integrated crew: Hugh Mulzac.

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

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.

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

The inside story of the massive military transport aircraft, the C-17.

The history and evolution of America's most legendary spy plane.

The history of the F-16 Fighting Falcon and how it became the U.S. Air Force's most versatile plane.

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.

The inside story of the F-4 Phantom, the U.S. military's go-to fighter for more than four decades.

The Vietnam-era OV-10 Bronco is pulled out of retirement to join the fight against ISIS.

The history of the Russian MiG, American air power's fiercest rival for more than 50 years.

Considered the deadliest fighter of WWII, Germany's Me-109s were feared by Allied bombers and fighters alike; 109s fought Spitfires in the Battle of Britain and alongside Rommel in North Africa.

The naval fighter designed to counter the Japanese Zero turns the tide of the war in the Pacific.

The true story of the F-14 Tomcat, the military aircraft made famous in "Top Gun"; how it served as the US Navy's top carrier fighter for a generation.

An inside look at the Panavia Tornado's evolution from a Cold War low-level bomber to a high-level fighter-interceptor.

Defy gravity in an Amsterdam high-rise that hangs 164 feet above the water; marvel at three interconnected towers in Chicago that have a road running through them; examine the revolutionary framework of Paris' controversial Pompidou Centre.

A sculptural high-rise with rippling balconies breaks the mold in Chicago; Mammoth machines bore 26 miles of tunnels for an underground railroad beneath London's city streets.

Visiting Australia's One Central Park, the Oslo Opera House and the California Academy of Sciences in San Francisco to reveal their architectural secrets.

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.

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.

Exploring behind-the-scenes of design and construction of revolutionary buildings in Spain, New York and a university campus in Florida.

JFK Jr. disappears on the way to Martha's Vineyard; a captain loses his bearings and crashes over the Red Sea; pilots crash a plane over Indonesia.

Following three air crash investigations in which examiners are pushed to the limit to crack the cases.

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

A Swissair passenger jet catches fire midflight and crashes into the Atlantic, leading to one of the largest investigations in aviation history.

A challenging descent in the Himalayas turns tragic when the pilots miscalculate their approach to a Kathmandu airport.

Following three horrifying crashes, investigators uncover fatal flaws in the very operations designed to prevent aircraft from flying into mountains.

A plane carrying a Brazilian soccer team crashes just ten miles from the airport in 2016.

A passenger plane veers off the runway in Denver sparking an investigation into the airport's proximity to the Rocky Mountains.

The business jet carrying PGA golfer Payne Stewart and former Alabama football quarterback crashes; how loss of pressurization and structural failure led to this crash and the deadliest aviation accidents in both Greek and Taiwanese history.

When former race car driver Niki Lauda's planes nosedives into a Thai jungle, a one-in-a-million failure reveals a weak spot in every Boeing 767; radio silence between pilots and air traffic controllers send investigators hunting for answers.

Bush aviators push the limit of their plane to deliver a two-ton generator. In Fairbanks, slippery runways threaten The Internation Ice Carving Championship and a high-tech airframe inspection on a Boeing 737 undercovers a poten.

The first fly-by-wire helicopter is put through its paces, as test pilots harness freezing temperatures. In Anchorage, a jet is lifted for repairs. In Talkeetna, pilots fight ice to deliver supplies to a homesteader's cabin in a.

Korean Air Cargo Flight 8509 crashes shortly after take off from London Stansted Airport on December 22, 1999.

In 1978, PSA Flight 182 collides with a Cessna and crashes into a San Diego residential area, killing everyone on both planes and seven people on the ground.

Air Midwest Flight 5481 plummets to the ground just after takeoff, killing all on board and injuring one on the ground.

West Caribbean Airways Flight 708 crashes down killing 160 people in 2005; it leads to the bankruptcy of the troubled airline.

A Russian passenger jet crashes into the Volga River, killing almost everyone on board; the incident turns into a national tragedy when rescuers discover the plane carried some of the country's famous athletes.

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.

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.

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.

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

VIA Rail's passenger train travels between Vancouver and Toronto on four-day, four-night journey that cater to everyone.

Travel aboard the colourful trains of the State Railway of Thailand and explore the famed Death Railway; the trains travel through ancient areas, historic tunnels, and raging rivers.

The Norwegian Epic is a billion-dollar showboat with more than 20 bars and restaurants and pool decks that transform into nightclubs.

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.

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.

The world's largest serially manufactured cargo plane, the Antonov 124, was built to move Soviet military vehicles and equipment.

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.

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.

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

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

Programming to be announced.

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

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

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.

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.

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.

Witness wild weather, emergency landings, animal invaders, and pandemic panics at Alaska's Ted Stevens Airport (ANC).

A national snowstorm brings U.S. aviation to a standstill, but Anchorage fights through the storm; USAF aircrews endure the toughest survival training on Alaska's North Slope, and a veteran aircraft flies life-saving cargo.

The crews at the Ice Airports must handle a premature birth, the theft of an ancient treasure and the arrival of a lost military hero.

A wolverine overcomes first-time flyer's nerves to travel to a new home. A helicopter pilot hunts for a showstopping ice cave. An 80-year-old cargo plane flies into the Arctic, and a wall of arctic fog threatens the airport wit.

A heavy hauling helicopter flies across the frozen Bering Sea to the tiny island of Little Diomede, just 2.4 miles from Russia. At Fort Wainwright the Artic Angels prepare for a medevac mission and a veteran bush pilot tests his.

A wolverine overcomes first-time flyer's nerves to travel to a new home. A helicopter pilot hunts for a showstopping ice cave. An 80-year-old cargo plane flies into the Arctic, and a wall of arctic fog threatens the airport wit.

A heavy hauling helicopter flies across the frozen Bering Sea to the tiny island of Little Diomede, just 2.4 miles from Russia. At Fort Wainwright the Artic Angels prepare for a medevac mission and a veteran bush pilot tests his.

A look at three commercial planes that became targets over the Sinai Desert, the Sea of Japan and Ukraine.

The FBI and NTSB join forces to determine how terrorists hijacked American Airlines Flight 77 and flew it into the Pentagon on September 11, 2001.

TANS Perú Flight 204 crashes into a muddy swamp while attempting to land at Pucallpa Airport, Peru, in a thunderstorm, killing 40 of the 98 people on board.

Featuring captivating reenactments and state-of-the-art CGI; Air Crash Investigation uncovers the truth behind the most legendary aviation disasters of all time.

An investigation into a jet crash from 2008 leads to a drastic change into the Russian aviation system.

A U.S. military plane veers off course and flies into a mountain while attempting to land at Dubrovnik Airport in Croatia in heavy fog, killing all 35 people on board.

Delta Air Lines Flight 1141 crashes beyond the runway while taking off from Dallas/Fort Worth International Airport.

Three flights headed for disaster are saved at the last moment by heroes in the cockpit.

In Sao Paolo, the Himalayas, and on the Norwegian coast, the toughest landings on earth pushed three flight crews.

Pilots of TACA Flight 110 make a remarkable landing on a narrow levee, but investigators must find out why the engines in a brand new plane failed.

On July 17, 2007, TAM Airlines Flight 3054 slides off runway 35L at Congonhas Airport in São Paulo, Brazil, and crashes at high speed into a warehouse adjacent to a petrol station killing nearly 200 people.

A pilot's decision to let his 15-year-old son fly has disastrous consequences on a commercial flight.

Indonesia AirAsia Flight 8501 stalls and crashes into the Java Sea while flying through a thunderstorm.

Following the story of the Scandinavian Airlines Flight 751 and Captain Rasmussen.

A pilot heads for a decommissioned air force base when the Boeing 767 jet he is flying unexpectedly runs out of fuel.

A look at the string of events that caused a midair collision in 2002 over the skies of southern Germany; a Bashkirian Airlines Flight collides with a DHL Flight in German airspace near Überlingen.

A United States Air Force transport aircraft conducting the inaugural flight of Operation Babylift suffers an explosive decompression when the rear cargo door fails and crashes into a paddy field while attempting an emergency landing.

Investigators discover a shocking mistake when pilots must ditch their plane in the Mediterranean, killing 14 of the 34 passengers.

A British Airways Flight's engines failure to respond cause the plane to crash-land just short of the runway.

Pilots leaving Cameroon steer their plane clear of a storm, but the aircraft begins rolling to the right, and they are unable to regain control.

Arrow Air Flight 1285 with 248 American soldiers on board crashes seconds after refueling in Newfoundland.

Three planes fall prey to deadly winds, and it is up to investigators to find out why.

A wolverine overcomes first-time flyer's nerves to travel to a new home. A helicopter pilot hunts for a showstopping ice cave. An 80-year-old cargo plane flies into the Arctic, and a wall of arctic fog threatens the airport wit.

A heavy hauling helicopter flies across the frozen Bering Sea to the tiny island of Little Diomede, just 2.4 miles from Russia. At Fort Wainwright the Artic Angels prepare for a medevac mission and a veteran bush pilot tests his.

After a passenger jet miraculously survives a collision with trees while landing, investigators attempt to uncover why the plane was flying so low.

Faced with a midair crisis, pilots must make a life or death decision, but the wrong approach can trigger a far more serious problem.

On 25 July 2000, a Concorde operating as Air France Flight 4590 stalls and crashes into a hotel in Gonesse shortly after takeoff from Charles de Gaulle Airport, killing all of the 109 people on board and 4 on the ground.

On 15 September 1989, a National Oceanic and Atmospheric Administration aircraft tasked with intercepting Hurricane Hugo over the Caribbean islands is jolted by strong winds, causing an engine to catch fire and fail.

A modern turboprop nosedives towards the North Sea after being struck by lightning, an unusual feature in the plane may explain why.

SilkAir Flight 185 crashes into the Musi River in Indonesia after abruptly diving from its cruise altitude.

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

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

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.

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

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 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.

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.

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

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.

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.

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.

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

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.

The American Museum of Natural History in NYC gets a cave-like extension; an arts center inspired by migrating birds is built on a lake in China; Boston University gains a fossil-free, Jenga-like tower.

A 1.2 million square foot office building balances precariously on a 39 foot wide base in Chicago. A building named Pterodactyl lands on top of a Los Angeles parking garage. And the world's longest suspension footbridge.

A 70,000-seat stadium defies seismic forces and international flight paths in LA. Zaha Hadid's dramatically twisted 33-story tower rises around ancient vaults in Malta.

Paying tribute to the brave, gravity-defying design of the U.S. National Medal of Honor Museum; traveling to Singapore for a look at a leaning tower of gambling, then exploring a New York City office building that lets the sun shine through.

Celebrating one of humanities biggest engineering achievements, the International Space Station, a meteor proof lab bigger than a football field, constructed by astronauts traveling 250 miles above us at 17,500 miles an hour.

On inadequate foundations, San Francisco's MOMA triples in size creating an exterior light enough to prevent collapse; a 1970s Sydney skyscraper is recycled into a 21st century tower; in Dallas, a five acre park is created.

An in-depth look at how things are repaired.

Mike is in Iceland, where teams harness the power of volcanos to keep the geothermal energy flowing; they battle harsh weather to maintain and upgrade giant power systems, fixing miles of steam pipes. and bringing a dead well back to life.

In the Alps of Switzerland, Mike helps an elite team install a new cable (rope) system on an iconic mountain gondola line, helps fix the world's steepest cogwheel railway track and explores mountaintop family farms only accessib.

Mike joins crews as they build the world's longest railway tunnel in the Alps, fixing gridlock through the infamous Brenner Pass by drilling, blasting and digging their way through the mountains.

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

A dazzling new 1400 foot tapering skyscraper is built right next to New York's Grand Central. A curving wine museum requires ingenious engineering in Bordeaux, France. And possibly the world's most glamorous parking garage.

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

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

A wolverine overcomes first-time flyer's nerves to travel to a new home. A helicopter pilot hunts for a showstopping ice cave. An 80-year-old cargo plane flies into the Arctic, and a wall of arctic fog threatens the airport wit.

A heavy hauling helicopter flies across the frozen Bering Sea to the tiny island of Little Diomede, just 2.4 miles from Russia. At Fort Wainwright the Artic Angels prepare for a medevac mission and a veteran bush pilot tests his.

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 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.

Delta Air Lines Flight 1141 crashes beyond the runway while taking off from Dallas/Fort Worth International Airport.

Experts examine a departing DC-9 in Detroit which gets lost in the fog and ends up in the path of an oncoming 727.

Air accident survival stories; keeping passengers and crews alive when disaster strikes.

When a turboprop loses engine power and crashes in Papua New Guinea, investigators discover a fatal defect existing in Dash 8s around the world.

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

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.

A look at how technological advances over the centuries have transformed maritime warfare.

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 history of the F-111 and how the fighter-bomber no one wanted went on to dominate both air and battlefields in the late 20th century.

The history of the mean and ugly jet aircraft, the A-10 Warthog.

The fighter plane that helped turn the tide of World War II; the P-51 Mustang.

The massive AC-130 provides unparalleled close air support to U.S. and allied ground troops.

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.

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.

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 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 London railway station; giant Singapore biodomes; eye-catching hospital in Las Vegas.

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.

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

A dazzling new 1400 foot tapering skyscraper is built right next to New York's Grand Central. A curving wine museum requires ingenious engineering in Bordeaux, France. And possibly the world's most glamorous parking garage.

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

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

The crew of a commuter flight over France makes a sight-seeing detour that sets off a deadly chain of events.

After experiencing icing conditions, a turboprop slams into an Argentine desert; investigators are mystified by what they uncover.

Five aviation disasters and the changes they have forced air-traffic controllers to make.

On 13 January 1982, Air Florida Flight 90 stalls at 300 feet altitude, strikes a road bridge and crashes into the Potomac River, killing 78 people.

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

When a plane carrying Russian tourists crashes in Egypt, investigators face political tensions and terrorist claims in their search for the truth.

A computer glitch causes a highly automated Qantas Airways flight to nearly fall out of the sky; Australian investigators must find the cause before it happens again.

From delusional hijackers to suicidal pilots, three flights fall victim to astonishing acts of sabotage.

A new investigation sheds light on the controversial 1961 plane crash that killed U.N. Secretary-General Dag Hammarskjöld.

Leading aviation experts are confronted with a shocking theory as they investigate one of the greatest aviation mysteries of all time.

A wolverine overcomes first-time flyer's nerves to travel to a new home. A helicopter pilot hunts for a showstopping ice cave. An 80-year-old cargo plane flies into the Arctic, and a wall of arctic fog threatens the airport wit.

A heavy hauling helicopter flies across the frozen Bering Sea to the tiny island of Little Diomede, just 2.4 miles from Russia. At Fort Wainwright the Artic Angels prepare for a medevac mission and a veteran bush pilot tests his.

When an African airliner mysteriously crashes, Namibian investigators have to rule out a host of possible causes before reaching a conclusion.

A Northwest Airlines flight cruises above the Bering Sea before problems develop and pilots must make an emergency landing in Anchorage.

An air traffic controller's mistake causes a Boeing 737 to land on a runway already occupied by another aircraft.

On 4 November 2010, shortly after takeoff from Singapore, the number-two engine on Qantas Flight 32 partially disintegrates, causing serious damage to its left wing.

A British Airways flight to Australia in 1982 crashes into the Indian Ocean.

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

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

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.

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

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 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.

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.