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.

[non-EPG] Mike works with repair and construction teams at Dreamworld, Australia's largest theme park, after a cyclone caused $4M in damage. They fix scream machines and finish a $50M expansion featuring the world's first triple switch rollercoaster.

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

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.

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

On 27 June 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.

Louisiana's wetlands and underwater oil fields.

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

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

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

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

The stories and sights of Hawaii's major islands.

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

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

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

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.

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

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.

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.

Mike works with the Army Corps of Engineers on a massive project to restore essential flow of fresh water to the Florida Everglades. He also joins scientists, python hunters and the Miccosuke Tribe to eliminate invasive species.

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.

Mike works with the Army Corps of Engineers on a massive project to restore essential flow of fresh water to the Florida Everglades. He also joins scientists, python hunters and the Miccosuke Tribe to eliminate invasive species.

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.

Mike works with the Army Corps of Engineers on a massive project to restore essential flow of fresh water to the Florida Everglades. He also joins scientists, python hunters and the Miccosuke Tribe to eliminate invasive species.

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

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

A look at commercial flights that ended in disaster because of suicidal pilots.

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.

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

Air Midwest Flight 5481 plane plummets to the ground just after take off killing all on board and injuring one on the ground.

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.

West Caribbean Airways Flight 708 crashes down killing 160 people in 2005 ultimately leading to the bankruptcy of the troubled airline.

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

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

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

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

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

Western Australia is home to colossal gold mines, massive sheep stations, the world's largest shark, an iconic and spectacular 4x4 trail, and Perth, the most isolated big city on Earth.

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.

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

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

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.

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

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.

Mike works with the Army Corps of Engineers on a massive project to restore essential flow of fresh water to the Florida Everglades. He also joins scientists, python hunters and the Miccosuke Tribe to eliminate invasive species.

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.

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

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

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.

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.

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

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.

Norway's Bergen Line stretches from Oslo to Bergen, passing through 182 tunnels; Nordland Line transports passengers and freight; Flam Railway boasts one of the steepest railway climbs on Earth.

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

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.

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

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

This modified Boeing 707 is one of only two 707 tankers in the world that provide commercial air-to-air re-fueling to the American military.

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

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

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

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 3-day, 2-night journey through Australia; the Pichi Pichi Railway offers passengers a trip on an original steam locomotive train.

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

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

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

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

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.

An American Airlines Flight en route to Cali, Colombia loses their exact position and flies 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.

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

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.

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

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

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

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.

Mike works with the Army Corps of Engineers on a massive project to restore essential flow of fresh water to the Florida Everglades. He also joins scientists, python hunters and the Miccosuke Tribe to eliminate invasive species.

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.

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 works with the Army Corps of Engineers on a massive project to restore essential flow of fresh water to the Florida Everglades. He also joins scientists, python hunters and the Miccosuke Tribe to eliminate invasive species.

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.

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

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

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

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

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

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 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.

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

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

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

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

A 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.

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

It is considered the largest sea battle in history: the Battle of Leyte Gulf in WWII was three days of ingenious strategy and white-knuckle combat between warships, aircraft and kamikazes.

A portrayal of a crucial September 1950 military operation that helped the UN and ROK gain the upper hand over North Korea in the Korean War.

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

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.

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

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.

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.

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

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

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

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

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

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

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.

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

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.

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.

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

A crew and its massive air crane helicopter haul millions of pounds of timber while battling the elements and handling emergency repairs.

Mike works with the U.S. Army in Germany inside the massive fix facility The MAK, Maintenance Activity Kaiserslautern, as teams repair over one hundred Bradley fighting vehicles, then embeds with troops in a massive two week long battle exercise.

Mike works with the Army Corps of Engineers on a massive project to restore essential flow of fresh water to the Florida Everglades. He also joins scientists, python hunters and the Miccosuke Tribe to eliminate invasive species.

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.

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

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

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

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

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

A propeller breaks off and rips a hole in the fuselage of an aircraft en route from Alaska to Washington 19,000 feet over the Pacific Ocean.

On 12 November 2001, just two months after the September 11 attacks, American Airlines Flight 587 spirals out of control shortly after taking off from John F. Kennedy Airport and crashes into Queens.

TAM flight 402 slammed into a residential neighborhood and burst into flames, just seconds after lifting off from Congonhas airport in São Paulo, Brazil, killing all 95 people on board and three people on the ground.

On December 21, 1992, Martinair Flight 495 crashes off the right side of the runway while attempting to land at Faro Airport in Faro, Portugal, in severe weather conditions, killing 56 of the 340 people on board.

One of the most beautiful states on the Atlantic Coast.

Taking an aerial tour of Virginia.

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

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

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

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

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

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

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

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

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

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

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

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.

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

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

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

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.

A Manhattan high-rise; an Athens cultural center; a Singapore university.

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.

After losing two engines near enemy territory, U.S. Air Force pilots abort their refueling mission and try to land their damaged plane.

Saudi Airways and Kazakhstan Airlines jets hit each other at 14,000 feet sending both planes spiraling to the ground.

The 2013 crash of Asiana Airlines Flight 214 in San Francisco shocks the nation.

On 31 October 2000, Singapore Airlines Flight 006 collides with construction equipment at Chiang Kai Shek airport in Taipei while attempting to take off on the wrong runway in a typhoon, killing 83 of the 179 people on board.

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.

Oregon's Cascade Mountains; Columbia River waterway.

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.

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

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

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

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

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 Manhattan high-rise; an Athens cultural center; a Singapore university.

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 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.

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

Challenges beset a sculptural new transportation hub for New York's World Trade Center; Amsterdam gains a building inspired by a mountain valley; a new launchpad for space travel prepares for liftoff in the New Mexico desert.

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

Host Mike Davidson goes to the remote Atacama desert in Chile; at observatory ALMA he works alongside the expert team as they repair some of the world's biggest antennas.

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

From the wreckage of three airplane crashes, survivors emerge to tell harrowing tales and provide critical data about what to do in an emergency.

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

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.

A shocking error in the cockpit causes the crash of a 737 on takeoff and leaves an entire nation reeling.

Southern England is a region of engineering marvels, spiritual sites and the great city of London; it includes the headlands that gave birth to King Arthur, the town where Shakespeare strutted his stuff and the towers of London's financial district.

Once the northern edge of the Roman Empire, Northern England is now home to the soccer Mecca of Manchester; it includes industrial cities as well as picturesque moorlands, lakes and dales, giving birth to Robin Hood, Dracula and The Beatles.

Wales is a land of myth and majesty, of legendary kings and warrior rebels; it has hundreds of castles and the hideaways where Led Zeppelin and Queen changed music history; Wales bears the indelible marks of invasion but forges its own destiny.

Scotland is a place of soaring peaks shrouded in mist and snow, rugged glens that have seen war and a tiny island that once held Mary, Queen of Scots; it's a land of heroes, such as freedom fighter William Wallace and the members of AC/DC.

An aerial tour over England, Wales, Scotland and Northern Ireland showcases the nation's passion for the outdoors and its love of sports.

A flight over Great Britain captures its many natural and manmade wonders and landmarks that were made famous by historical figures and mythical legends.

On 21 February 2008, Santa Bárbara Airlines Flight 518 strays off course and flies into the side of a mountain shortly after takeoff.

On 20 August 2011, First Air Flight 6560, a charter flight, crashes near its destination of Resolute Bay Airport, Resolute, Nunavut, Canada, in poor weather conditions; out of the fifteen passengers and crew members, only three survived.

A look at accidents and incidents where problems with the interface between crew members and onboard avionics are a factor, and the causes of those problems.

Mid-air tragedies are particularly horrifying when they occur over a community, and rain terror on the people below.

When a cargo plane crashes at a U.S. airfield in Afghanistan, investigators reach a conclusion that ultimately proves incorrect.

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 turboprop plane crashes at an Irish airport, investigators uncover a startling gap in aviation safety.

Alaska Airlines 261 nosedives into the Pacific leaving investigators stumped . A rare storm and a deadly design flaw intersect cause American Eagle 4184 to fall from the sky. And, investigators suspect a fatal flaw in the Boeing 737.

The crews of three doomed aircraft make catastrophic blunders.

Faced with the extreme conditions of the far North, three flights fall out of the sky leaving investigators to uncover the cause.

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

Indonesian investigators must determine why a Boeing 737 Max 8 - one of the world's best-selling new airplanes - plunged into the Java Sea.

Three catastrophic runway collisions raise the same pressing question; a look at how two planes end up on the same runway at the same time.

On its final approach to Charlotte, N.C., US Air Flight 1016 is engulfed in intense rain obstructing the view from the cockpit; the pilots abort the landing, but the aircraft crashes to earth, hurtling along a road and breaking apart.

SAS Flight 686 takes off from Milan's Linate Airport and moments later collides with a Cessna on the runway.

Pilots of Southern Airways Flight 242 must try to land on a Georgia highway after the engines die and the windshield shatters.

Chalk's Ocean Airways flight 101 crashes just after take-off from Watson Island in Miami on December 19, 2005, killing 20 people.

An Air Inter flight crashes into the Vosges Mountains while attempting to land killing most of the 96 passengers.

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.

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.

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.

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 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.

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.

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.