National Geographic HD

The guys search the factory where marble was made for the US Supreme Court. They also find intriguing White House blueprints in an old bomb shelter.

The team explores an abandoned lace factory and discover its hidden secrets, including a bowling alley.

Alaskan residents must test their physical limits during the dark and freezing cold winter months in search for sustenance.

On a high-stakes demonstration flight in Indonesia, a Russian-made Sukhoi Superjet slams into a mountain killing everyone on board. It's one of the most challenging salvage operations Indonesian investigators have ever faced.

In California's Mojave Desert, Virgin Galactic test pilots are at the controls of a revolutionary aircraft designed for suborbital flight.

The act of sabotage is one of the most effective weapons in any arsenal. Direct attacks, advanced weaponry and the element of surprise have sent many ships to their final resting place on the seafloor.

The crew race to fix a vessel following a devastating accident. A mishap threatens to capsize a tugboat and there's trouble when the salvage team tow a giant barge.

As the snow comes down hard on Donner Pass, the crew struggle to extract a big rig loaded with hay from a ditch far below the highway.

Exploration is key to surviving the harsh arctic elements for Alaska's Next Generation.

Hazen Audel hunts precious mushrooms in the primal forests of Laos.

Curly fires the first rounds of duck season. Oliver hunts for fresh crab.

Killer wolves turn a quiet duck hunt deadly serious for Tim Curly Leach.

On 26 April 1994, China Airlines Flight 140 enters an aerodynamic stall at low altitude and crashes approximately 100 metres away from the runway while on final approach to Nagoya Airport in Nagoya, Japan.

Swiss investigators must determine how a seasoned Alitalia crew flew their DC-9 into the ground on 14 November 1990. The aircraft was just a few miles short of a Zurich runway and crashed during the final approach.

Tim and Fuzz take on a 1993 Toyota Supra Mk 4 owned by former competitive motorcycle racer Lisa, who, after a road accident, is no longer able to ride her beloved bikes.

A discovery of the science behind the fails and falls of electric scooters. Plus, a look at the dynamics of jumping on hay bales and how to make a homemade zipwire.

Dallas checks out calamitous clips as he reveals how easy it is to get injured in an off-road buggie, the hazards of swing seats and the humiliating consequence of cart-wheeling.

War, weather and human error have led to some of the worst maritime disasters in US history. But imagine if we could empty the oceans, letting the water drain away to reveal these secrets.

Production secrets behind a million cups of applesauce annually, ultra-creamy fudge at America's longest-running family candy maker, and a billion crispy onion rings.

Spotlighting a bakery that makes 28 donuts per second, factory employees who make pepperoni by hand, and a chocolaty multigrain snack.

Canadian Pacific freight crews tackle one of their most challenging loads. The team attempt to haul a 210-tonne reactor on an epic cross country journey.

After a snowstorm, a car ends up crashed 60 metres into a field. Thord tries to tow it out, but he gets stressed when a winch failure jeopardises the rescue.

Alaska Natives train the next generation to provide from the land.

The Mount Erebus team struggle to salvage data from the volcano, and Craig leads an expedition for one more set of samples before they head home.

Canadian Pacific freight crews tackle one of their most challenging loads. The team attempt to haul a 210-tonne reactor on an epic cross country journey.

After a snowstorm, a car ends up crashed 60 metres into a field. Thord tries to tow it out, but he gets stressed when a winch failure jeopardises the rescue.

Alaska Natives train the next generation to provide from the land.

The Mount Erebus team struggle to salvage data from the volcano, and Craig leads an expedition for one more set of samples before they head home.

Hazen Audel hunts precious mushrooms in the primal forests of Laos.

Curly fires the first rounds of duck season. Oliver hunts for fresh crab.

Killer wolves turn a quiet duck hunt deadly serious for Tim Curly Leach.

Tim and Fuzz take on a 1993 Toyota Supra Mk 4 owned by former competitive motorcycle racer Lisa, who, after a road accident, is no longer able to ride her beloved bikes.

A discovery of the science behind the fails and falls of electric scooters. Plus, a look at the dynamics of jumping on hay bales and how to make a homemade zipwire.

The crew race to fix a vessel following a devastating accident. A mishap threatens to capsize a tugboat and there's trouble when the salvage team tow a giant barge.