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

Trace the chain of events that led to a deadly explosion on the Deepwater Horizon rig and unleashed the largest marine oil spill in history; see the failed part that caused the NASA Challenger Space Shuttle to explode seconds after liftoff.

Two 747s collide on the runway of a small airport in the Canary Islands, resulting in history's deadliest air crash.

On 18 June 1972, British European Airways Flight 548 stalls and crashes in a field near Staines shortly after takeoff from London Heathrow Airport, killing all 118 people on board.

After a Boeing 727's near-fatal nosedive over Michigan, investigators risk their own lives to determine what caused the aircraft to lose control.

The inside story of one of history's most infamous and complex investigations: the 1996 crash of TWA Flight 800.

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.

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

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

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.

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

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

When an Airbus crashes into the Mediterranean Sea, Egyptian authorities, French investigators and an Italian journalist theorize different causes for the accident.

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

Trace the chain of events that led to a deadly explosion on the Deepwater Horizon rig and unleashed the largest marine oil spill in history; see the failed part that caused the NASA Challenger Space Shuttle to explode seconds after liftoff.

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

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

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

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

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

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

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

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

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

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

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.

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

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.

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.

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

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.

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

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

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

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

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.

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

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

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.

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.

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

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.

Architects and engineers build an eco-friendly convention center on Vancouver's waterfront, a lift bridge in Bordeaux and a cocoon-shaped skyscraper in Tokyo each with unique challenges like marine habitats and massive spans.

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.

The engineering secrets behind a massive sky garden in Singapore, the world's most slender tower in Brighton, and a railway station in the shadow of Vesuvius.

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.

Mike Davidson embarks with the team to one of the most extreme, avalanche-prone ski mountains in the world: Snowbird; they battle to keep the steep and deep slopes safe with shovels, snowcats and even a WWII Howitzer.

Mike Davidson goes to the biggest automated package sorting facility in the world, UPS Worldport in Louisville, Kentucky; two million packages go through here every day.

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.

An in-depth look at how things are repaired.

The engineering secrets behind the world's steepest mountain railway, a remodeled 145-year-old museum and a futuristic condo.

Building an eco-friendly visitor center 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.

Traveling to New York, Denver and Nice, France to visit Little Island, the Denver Museum of Art and La Tête Carrée; the secrets to how they were built is revealed.

Visiting the Vancouver House, Norway's Under restaurant and the Seattle Central Library to discover how these visionary buildings were created.

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

Trace the chain of events that led to a deadly explosion on the Deepwater Horizon rig and unleashed the largest marine oil spill in history; see the failed part that caused the NASA Challenger Space Shuttle to explode seconds after liftoff.

On 25 May 1979, the number-one engine on American Airlines Flight 191 detaches moments after taking off from Chicago O'Hare International Airport. The aircraft banks to the left and crashes into an open field, killing all 271 people on board.

During a storm, a strong gale slams Delta Airlines Flight 191 to the ground, killing most people on board.

A blade on the left-side propeller of Atlantic Southeast Airlines Flight breaks off; the imbalance of the rotating propeller causes the engine to partly tear itself from its mounting.

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

A mechanical problem aboard an Air Canada plane turns into an all-out emergency six miles in the air.

The roof of an Aloha Airlines 737 tears off the plane at 24,000 feet in the sky.

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.

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.

A look at how maritime task forces and the Coast Guard are keeping commercial vessels and US shores safe from pirates and drug smugglers.

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

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

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

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

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

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

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 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.

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.

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.

Great mountain ranges; coal-based economy.

A flight over Northern California explores ancient forests, timeless coasts, golden cities and the region's pioneering spirit.

One of the most beautiful states on the Atlantic Coast.

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

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

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.

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.

On the 24th of February 1989, part of the right-side fuselage of United Airlines Flight 811 rips off, ejecting nine people from the aircraft and causing explosive decompression; the flight later lands safely at Honolulu without any more loss of life.

While landing at a notoriously tricky Alaskan island airport, the pilots of a twin turboprop can't stop their plane.

After a DC-8 cargo plane with only three working engines crashes on takeoff in Kansas City, investigators uncover a flaw in the pilots' training.

Two float planes collide midair near an Alaskan waterfall. One shatters; the other crash-lands intact. With no warning before impact, investigators use wreckage clues and 3D tech to uncover how-and why-the deadly crash occurred.

Solving the crash of China Airlines Flight 676 hinges on 11 baffling seconds when neither pilot controls the airplane.

As flames emerge through the cockpit floor, the pilots of Pilgrim Airlines 458 manage a landing on a frozen Rhode Island reservoir.

Colgan Air 9446 nosedives into the waters off Cape Cod just minutes after takeoff following a four-day maintenance stop.

UPS Airlines Flight 1354 clips the tops of trees and crashes into a hillside about one nautical mile short of the runway during final approach to Birmingham-Shuttlesworth International Airport in Alabama.

Trace the chain of events that led to a deadly explosion on the Deepwater Horizon rig and unleashed the largest marine oil spill in history; see the failed part that caused the NASA Challenger Space Shuttle to explode seconds after liftoff.

A design fault leads to an explosion on a DC-10 and two years later the same design fault causes another tragedy.

A freight train carrying an excess of cargo loses its brakes while descending a mountain causing it to gain speed and derail into a neighborhood killing several people.

With a young rising football star on board, a chartered Piper Malibu suddenly disappears from radar over the English Channel.

Ethiopian Airlines Flight 302 crashes shortly after takeoff.

The dashcam of a passing car captures stunning footage of the final moments of a Taiwanese commuter aircraft as it banks steeply, clips an elevated highway and nosedives into the river; investigators find no signs of pre-impact malfunction.

A Boeing 737 is rocked by a midair explosion that challenges its pilots and nearly ejects a passenger out of a blown-out window.

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

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

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

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

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

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

A tour over two U.S. territories, Puerto Rico and the U.S. Virgin Islands.

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

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

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

The stories and sights of Hawaii's major islands.

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

A journey across Central Italy from the air reveals the ancient Rome, the bloody medieval battles of Tuscany and the colossal marble quarries of Carrara.

Viewing Northern Italy from the air; the fashion capital of Milan; the canals of Venice; the peaks of the Dolomites; the colorful coast of Cinque Terre.

The islands of Italy come in all shapes and sizes; they are home to volcanoes, ancient civilizations and some of the bluest waters on Earth.

Viewing Southern Italy from the air; Greek temples on the Mediterranean; cities that just seem to float above the sea; one of the most powerful volcanoes on Earth.

An exploration of the Cyclades in the Aegean Sea; exploring the tourist hotspots of Mykonos and Santoríni to Náxos and Amorgós.

An aerial tour over southern Greece celebrates its landscapes, its ancient and mythical past and the people who call it home.

Capturing from high, the islands Crete, Samos, Chios, Rhodes and the Dodecanese; exploring the distinct culture and unique stories of these islands.

An aerial tour of northern Greece explores Mount Olympus, Macedonia, the island of Corfu and more; the lifestyles of the region's inhabitants.

Investigators try to solve the mystery of a plane whose captain and co-pilot are missing.

Trans-Air Service Flight 671 suffers an in-flight separation of its two right engines while en route to Kano, Nigeria, forcing the pilots to make an emergency landing at Istres-Le Tubé Air Base in France.

When a DC-8 cargo jet crashes on approach to a U.S. naval base in Guantanamo, investigators wonder if Cuba played a role.

Facing a cascade of failures and a fire on board, a turboprop is just seconds from landing when it flips over and crashes.

The birthplace of the Star Spangled Banner; sites Harriet Tubman, Babe Ruth and the DuPont family made their marks on history.

A flight over Massachusetts explores the sites; the Bay State, from Martha's Vineyard to the Bambino's Curse, seen from the air.

America's most remarkable natural wonders are explored including the Grand Canyon, the Great Lakes and more.

A cross-country flight over the nation's mountains, beaches and national parks; visiting other sites that attract adventurers and tourists.

A flying tour of Michigan's cultural landmarks, including Motown, the Great Lakes, the automobile industry and more.

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

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

Taking an aerial tour of Virginia.

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.

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

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

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.

Experts investigate the Saudia Flight 163 tragedy, which killed 287 passengers and 14 crew members following an in-flight fire.

Trace the chain of events that led to a deadly explosion on the Deepwater Horizon rig and unleashed the largest marine oil spill in history; see the failed part that caused the NASA Challenger Space Shuttle to explode seconds after liftoff.

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.