Nat Geo HD

A look at the secrets hidden in some of the world's most impressive buildings and constructions, and how scientists are finally learning to decode them. 12+.

Investigators struggle to access the site where a Santa Barbara Airlines Flight crashed in 2008. Can they gather enough evidence to prove what went wrong? 7+.

It was the largest and most celebrated airship ever built, but on 6 May 1937 it caught fire, killing 36 passengers and crew. What caused the tragedy? 7+.

From an officer who captured an elusive fugitive to a decorated Spitfire pilot, follow the stories of the Germans who fought with the Allies against their country during WWII. 7+.

In 1943, Hitler is desperately trying to change the course of the war, while the Allies prepare to rid the world of the lead Nazi once and for all. (1 of.

It's 1944, and as the Allied forces take over the West and Nazis retreat in the East, Hitler orders his country to its ruin from his underground bunker. (2 of.

Documentary exploring the history of the Hitler Youth, which absorbed all other organisations for young people, indoctrinating a whole generation of German boys.

From a captain who took the battle to the enemy's backyard to a lifeguarding mission that singlehandedly saved one of America's future presidents.

Documentary breaking down the science behind sinkholes that eat cars and pits of quicksand that swallow humans, revealing how to avoid and survive these natural phenomena. All Ages.

Experts delve into the fatal crash of Singapore Airlines Flight 006. They originally blamed severe winds then they found strange markings on a closed runway. 7+.

Looks at the circumstances surrounding the crash of SilkAir Flight 185 in 1997, which suddenly plunged 35,000 feet over Indonesia, killing 104 people. 7+.

Experts face a tough investigation into the crash of TANS Perú Flight 204 after key evidence is looted from the crash site. 7+.

Discover why oats endure a rigorous cooking process before they are made into granola bars, and how one company makes tasty BBQ veggie medleys.

Discover how state-of-the-art machinery makes 50,000 perfect frozen pizzas a day. Plus, what's the buttery secret to making mini Quiche Florentine.

7+.

Your one-stop shop for all things cruise; bringing you the hottest destinations, ground-breaking ships and the latest deals to ensure your next cruise is your greatest one.

As wild weather and traffic convoys cause havoc, Thord races to rescue stranded drivers. Plus, Ole Henrik takes the company's new truck on its first mission. (S9, ep 4) 7+.

Thord puts his life in danger to rescue one truck that skidded to a stop on the ice, while rookie Raido battles icy conditions to recover a fish truck. (S9, ep 3) 7+.

A design fault leads to an explosion on a DC-10. Two years later and the same fault causes a similar tragedy. It could've been prevented so why wasn't it? 7+.

Previously unseen footage reveals how, as Nazi soldiers enjoy rest and recreation in Paris, Jews and Polish prisoners are forced into slave labour.

New footage reveals the conflict raging in Asia, Stalingrad and Egypt. While in Europe, the darkest days of the war approach as the Nazis instigate The Final Solution.

Investigation into the mysterious disappearance of Nazi submarine U-745 which vanished in 1945. The frozen body of its captain was found on Foglo island. But what had happened? 7+.

At Toronto Pearson International Airport, the sub-zero temperatures push the de-icing station to its limits, as snow and freezing ice delays take offs. (1 of 10) 7+.

Fire crews race to a plane with faulty brakes, cargo vanishes and passengers refuse to check bags. (2 of 10) 7+.

A flight carrying 80 passengers and crew crashes on landing. As the airport goes into an immediate stop, the teams on the ground are pushed to their limit. (3 of 10) 7+.

Transportation's fragility is clear when trains collide, planes crash, or ships sink. Explore investigations, graphics and archives. (5 of 10) 7+.

Titanic In The Sky: On 4 November 2010, the pilots of Qantas Flight 32 had to deal with a series of failures when an explosion tore apart an engine on their A380. 7+.

The eruption of a volcano buried the city in debris. Now, excavators are digging to unearth this Roman town by uncovering an enslaved person's room.

Thanks to the latest scientific advances and ultra-realistic 3D reconstructions, this is the brutal fall of the Empire of the Sun.

In the shadow of the pyramids, an elite team of archaeologists embark on an extraordinary excavation. Could this secret site reveal new evidence? 7+.

Uncover the secrets of the Mary Rose, Quedagh Merchant and Clotida, including what brought them down and the fate of the countless souls aboard them. (S4, ep 2) 7+.

MIA CBP targets a passenger with frequent trips to Colombia. After further questioning him, officers suspect he could be smuggling narcotics internally.

MIA HSI carries out a daring sting, delivering cocaine that was hidden in a shipment of paintings and at LAX, a set of unclaimed suitcases arouses suspicions.

Etruscan Mummy: Did a 200-year-old mechanical man really beat the world's best chess players? Who made it, and how does it work? (S3, ep 9) 7+.

The Curse of Vlad The Impaler: Sam investigates the curse of Vlad Tepes, a 15th century eastern European ruler whose curse upon his Romanian homeland has lasted for centuries. 18+.

Discover how 15 metric tonnes of goat cheese gets made each week. And why a team of experts have to get hands-on to make 8,000 strawberry shortcakes. (S1. ep 18) 7+.

Discover how blended vodka mixers sweeten Russia's most popular export. Plus, how the moon inspired a dessert called the Super Caramel Crunch cake. (S1, ep 19) 7+.

Your one-stop shop for all things cruise; bringing you the hottest destinations, ground-breaking ships and the latest deals to ensure your next cruise is your greatest one.

Explore the vast engine room which produces Harley-Davidson motorcycles, and discover how up to 50 of the famous dream machines are produced every hour. 7+.

From pilot errors to meltdowns within air traffic control, investigators dig deep into three mid-air collisions that seem to defy logic. (S5, ep 4) 7+.

Thanks to the latest scientific advances and ultra-realistic 3D reconstructions, this is the brutal fall of the Empire of the Sun.

America's submarine force struggles to gain an edge in the South Pacific. Dudley 'Mush' Morton, Commander of USS Wahoo, sets out to turn the tide. 7+.

From footage of Hitler relaxing in his Alpine retreat shot by Eva Braun, to haunting images of Jewish persecution, see the true story of World War II.

When basketball legend Kobe Bryant is killed in a helicopter crash in LA, investigators look for clues amid a global outpouring of grief. (S21, ep 10) 7+.

After a Boeing 727's near-fatal nosedive over Michigan, investigators risk their own lives to determine why the plane fell out of the sky. (S21, ep 6) 7+.

The story of the Lost Battalion - the American troops whose mission to liberate St Malo saw them trapped behind enemy lines, with devastating consequences.

Experts learn secrets of the Roman Empire when they uncover one of the oldest shipwrecks in the world. A port lost for centuries is also discovered. 7+.

As Thord and Terje risk their lives to save one truck's valuable cargo, Jo Roger and Stig help another truck which is stuck blocking a main road. 7+.

A look at the deadly and resilient weapons and constructions built by the Nazis in their bid for world domination. (S1, ep 1) 7+.

A commuter turboprop descends into heavy fog above Luxembourg when something goes horribly wrong. (S24, 5 of 10) 7+.

Tim and Fuzz pull out all the stops as they secretly help ex-mechanic Ray get his beloved 1960s British classic back on the road. (S5, ep 7) 7+.

Tim and Fuzz get more than they bargained for when they agree to secretly restore a beloved Singer Le Mans sports car for its 70-year-old owner. (S4, ep 4) 7+.

Take a tour of some of the world's most expensive and useless airports and learn why a Shanghai apartment tower dropped like a slab. (S2, ep 4) 7+.

Investigators struggle to access the site where a Santa Barbara Airlines Flight crashed in 2008. Can they gather enough evidence to prove what went wrong? 7+.