National Geographic HD

Refurbishing experts Jay, Dan, and Mark head to historic Philadelphia to explore an abandoned gothic church and school.

The team hunt for treasures in an abandoned silk mill, however, the owner is fiercely attached to the property and seems unwilling to let anything go.

For the next generation, survival is a daily battle in Alaska, were harsh arctic conditions have claimed countless lives.

Investigators face puzzling questions when a Boeing 767 crashes into the hillside several miles from South Korea's Gimhae International airport.

Minutes after taking off, TWA Flight 800 is ripped apart by a massive explosion, leading to one of the most challenging investigations conducted.

The China seas are considered to be one of the most mysterious waters on the planet. Ocean experts uncover and expose the shipwreck remains of the biggest battleship ever put on water.

Jo Roger and Ole Henrik try to salvage some salt that could contaminate Norway's largest salmon river.

The team search for forgotten relics in an 18th-century gristmill in Westminster, Maryland, that's been abandoned for decades.

The team explore a defunct paper factory, but Jay must win the owners over and prove that he too wants to preserve the property's history.

As winter continues to show no mercy, it is vital that residents of remote Alaska be entirely self-reliant if they wish to survive.

In the second leg of his challenge, Hazen tackles giant anaconda, venomous rattlesnakes, and a treacherous river crossing as they attempt to escape the coming floods.

The citizens of Port Protection give back to their community.

Sam and Matt brave chilling conditions on their final mission for deer.

20 minutes after leaving Egypt, Metrojet flight 9268 crashes carrying Russian tourists. An international team of investigators gather to determine if this was an accident or a terrorist retaliation.

Approaching Charlotte, North Carolina, USAir Flight 1016 falls from the sky. The pilots blame severe weather, but that's only part of the story.

Big car reveals and even bigger celebrities! Tim and Fuzz take a nostalgic look back through their most star-struck moments in a special celebrity edition.

Dallas Campbell checks out the terrifying effect of a malfunctioning powerline, the science behind velodromes and what can go wrong when driving in snow.

Parallel parking is hard. But why? Dallas Campbell drives us through the science. Playground spinners and BMX stunts come under the spotlight, too.

For more than 2000 years, scholars of antiquity have been puzzling over Plato's descriptions of the Island Nation of Atlantis. Experts uncover evidence of underwater cities to investigate if they are proof of civilisations, or accidents of geology.

On a quest for the ultimate bacon experience, tour a Texas smokehouse where they serve bacon-flavoured soda, and a former turkey farm with chocolate bacon bits.

An army of workers serve Cold Stone ice cream, five Vietnamese brothers perfect flaky French pastries, and watch flying fish while ordering crab cakes in Seattle.

Experts take us inside Kim Jong-Un's mind as he tries to forge a future for his dysfunctional kingdom while maintaining tight control of his people.

Kim Jong-Un tries diplomacy as he seeks legitimacy for his regime and relief from sanctions, but failure on the world stage could mean a return to his old ways.

Nazis fortify coasts as Allies ready history's largest amphibious invasion. Later, Hitler initiates a full-scale assault with the Battle of the Bulge.

Allied commanders attempt one of the most audacious bombing missions of WWII, then race to stop Hitler's aerial assaults.

Experts take us inside Kim Jong-Un's mind as he tries to forge a future for his dysfunctional kingdom while maintaining tight control of his people.

Kim Jong-Un tries diplomacy as he seeks legitimacy for his regime and relief from sanctions, but failure on the world stage could mean a return to his old ways.

Nazis fortify coasts as Allies ready history's largest amphibious invasion. Later, Hitler initiates a full-scale assault with the Battle of the Bulge.

Allied commanders attempt one of the most audacious bombing missions of WWII, then race to stop Hitler's aerial assaults.

In the second leg of his challenge, Hazen tackles giant anaconda, venomous rattlesnakes, and a treacherous river crossing as they attempt to escape the coming floods.

The citizens of Port Protection give back to their community.

Sam and Matt brave chilling conditions on their final mission for deer.

Big car reveals and even bigger celebrities! Tim and Fuzz take a nostalgic look back through their most star-struck moments in a special celebrity edition.

Dallas Campbell checks out the terrifying effect of a malfunctioning powerline, the science behind velodromes and what can go wrong when driving in snow.

Parallel parking is hard. But why? Dallas Campbell drives us through the science. Playground spinners and BMX stunts come under the spotlight, too.

Jo Roger and Ole Henrik try to salvage some salt that could contaminate Norway's largest salmon river.