National Geographic HD

For the first time, hear from insiders who secretly worked on jaw-dropping aircraft and weapons systems at the highly classified military base and rumoured storage spot for UFOs.

New virtual visualisation techniques 'drain' the Titanic's wreck site to uncover the secrets of how the 'unsinkable' ship met her fate.

A look into what could have possibly wiped out the pirate city of Port Royal, and of what made Alcatraz so inescapable. Draining the ocean could reveal the secrets of the sea's floor.

Discoveries at Pompeii and Herculaneum reveal the last moments of people surprised by the now illustrious volcanic eruption two thousand years ago.

Jungles comprise the most diverse habitats on Earth in which only the most resilient species triumph; the fiercest jungle species include jaguars, caimans, gibbons, orangutans, spectral tarsiers, hummingbirds, and parasites.

Deserts are getting even hotter, drier and bigger, yet a host of remarkable animals still survive in the harshest of conditions, including cunning hyenas, pint-sized meerkats and sand-dwelling spiders.

The frozen poles are home to the planet's ultimate survivalists, including polar bears, penguins and Arctic wolves. Their world is changing fast - breaking apart under their feet - and their resilience will be tested beyond the extreme.

Finding out what it takes to make rice noodles by the truckload, how a hardworking team takes the hassle out of preparing butternut squash and why there is a chocolate waterfall in a candy factory.

Following the amazing story of maple syrup from tree to bottle, and the `tower of power' behind some delectable butter toffee popcorn that is carefully mixed by hand in Washington.

An insight into the production process of huge quantities of cheese curds and super sweet, vegan Hello Dolly bars. We also visit the factory where guacamole and candy laces are made from apple.

A visit to the chocolate factory that makes truffles from raw cocoa beans using ginger, lime and coconut. It is also investigated how environmentally friendly coffee pods, jiaozi with vegetables and Moon Cheese are produced.

Explores just how many ways there are to embarrass, injure and humiliate oneself while doing backflips on a pogo stick, drop-ins on a ski cliff, or even reverse parking.

Exploring just how many ways there are to embarrass, injure, and humiliate oneself while racing a snowmobile, jumping a skateboard, or walking in long robes.

We learn just how many ways there are to embarrass, injure and humiliate yourself while steering a boat, roller skating or attempting to clear a dirt jump on your bike.

We learn just how many ways there are to embarrass, injure and humiliate yourself while jumping into hedges, stopping a longboard or simply confronting parking gates.

From corrosion and metal fatigue to faulty repairs, three doomed airlines are brought down by gradually deteriorating parts.

Southwest Airlines flight 1380 is hit by an explosion in mid-air. The cabin door of a Boeing 737 is smashed open over Hawaii. Air Canada flight 797 caught fire 90 seconds after the emergency landing.

A passenger is sucked out of the window after a plane is hit by an explosion in mid-air. The cabin door of a Boeing 737 is swung wide open over Hawaii.

Pilots are prepared to cope with a range of emergency scenarios, but failures in training can lead to catastrophe in the cockpit.

Joe and Ran spend an unforgettable night inside the Great Pyramid of Giza on the second leg of their journey. Then, they head to a place named Luxor that is rarely visited by tourists.

Spending weeks at sea, diving thousands of hours, and seeking out some of the least explored and understood places in the ocean, Enric Sala and a team of scientists and filmmakers work to inspire the creation of protected areas for marine life.

National Geographic Pristine Seas returns to Niue to study how a new marine reserve is helping safeguard its ocean resources for generations to come.

From the mighty Amazon's icy source to its freshwater plume reaching as far as the Caribbean, National Geographic Explorers conduct groundbreaking research to take the pulse of one of the planet's integral and endlessly magical resources.

Just inside Everest's notorious death zone, a team of climate scientists who specialize in extreme weather weigh their next move.

Morticians in a New Jersey lab focus on turning death into something beautiful.

National Geographic Pristine Seas returns to Niue to study how a new marine reserve is helping safeguard its ocean resources for generations to come.

From the mighty Amazon's icy source to its freshwater plume reaching as far as the Caribbean, National Geographic Explorers conduct groundbreaking research to take the pulse of one of the planet's integral and endlessly magical resources.

Just inside Everest's notorious death zone, a team of climate scientists who specialize in extreme weather weigh their next move.

Morticians in a New Jersey lab focus on turning death into something beautiful.

From corrosion and metal fatigue to faulty repairs, three doomed airlines are brought down by gradually deteriorating parts.

Southwest Airlines flight 1380 is hit by an explosion in mid-air. The cabin door of a Boeing 737 is smashed open over Hawaii. Air Canada flight 797 caught fire 90 seconds after the emergency landing.

A passenger is sucked out of the window after a plane is hit by an explosion in mid-air. The cabin door of a Boeing 737 is swung wide open over Hawaii.

Pilots are prepared to cope with a range of emergency scenarios, but failures in training can lead to catastrophe in the cockpit.

Explores just how many ways there are to embarrass, injure and humiliate oneself while doing backflips on a pogo stick, drop-ins on a ski cliff, or even reverse parking.

Jungles comprise the most diverse habitats on Earth in which only the most resilient species triumph; the fiercest jungle species include jaguars, caimans, gibbons, orangutans, spectral tarsiers, hummingbirds, and parasites.