Nat Geo+1

The story of propaganda maestro Joseph Goebbels and Holocaust architect Heinrich Himmler: two men who built one of the largest social megastructures ever. 7+.

Will travels to the kingdom of Bhutan on a deeply intimate journey in search of the secret to happiness. (S1, ep 5) 7+.

The series homes in on the controversial findings of the investigation into the crash of British European Airways 548, which killed 118 people in 1972. 7+.

On 6 June 1971, Hughes Airwest Flight 706 collided with a US Marine Corps F-4 Phantom at 15,000 feet over California. What was the cause of this fatal disaster? 7+.

Experts investigate the fatal crash of Crossair Flight 498. First they suspected phone interference, then they found drugs in the captain's flight bag. 7+.

Experts investigate American Airlines Flight 587 crash, which killed 265 people in NYC just months after the 9/11 attacks. What was behind the disaster? 7+.

From mouth-puckering gummy worms to crunchy golden tacos and aromatic curry, discover how food is really made for the masses. (S2, ep 7) 7+.

Discover how classic salty pretzels, heavenly tiramisu and sweet and tangy ketchup get made, with a behind-the-scenes look at mass food production. (S2, ep 8) 7+.

Explore the engineering wonders of Europe's northernmost region, from Iceland's epic lava-defying barriers to Finland's record-breaking vertical factory. (2 of 6) 7+.

Thord and Bjoern are tested to the limits when they have to rescue a truck from falling into a lake. 7+.

Thord and Bjoern battle one of Norway's biggest storms in a decade as they try to rescue a truck loaded with steel girders. 7+.

Bjoern is put under pressure when a head-on collision between two trucks blocks an ambulance on an emergency call-out. (S7, ep 3) 7+.

An aerial view of Scotland reveals an astonishing tidal energy project, a majestic cliff-top castle and the world's first golf course. (S4, ep 1) 7+.

As storms close runways, a man has an apparent heart attack on an incoming flight. Can the plane land? Later, a fire drill turns into a real emergency. (S1, ep 4) 7+.

Fridays are always busy, and more passengers means more problems. Today an air ambulance emergency, security breaches and illegal drugs need attention. (S1, ep 7) 7+.

The work never slows at Sydney Airport, whether it's changing a wind sock, painting a runway at midnight or putting out a potentially catastrophic fire. (S1, ep 9) 7+.

An oversold flight needs passengers to surrender their seats, but will any volunteer? Cracked windows risk grounding a Dreamliner and more. (S1, ep 9) 7+.

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+.

A look into the 2009 crash of Turkish Airlines Flight #195. Just before landing, the plane mysteriously fell from the sky, killing 9 people. (S9, ep 6) 7+.

The Roman Empire once controlled 25% of the world's population. Now, archaeologists are excavating this vast frontier. (S2, ep 5) 7+.

Spiculus becomes a superstar in Rome's brutal arenas. Rewarded with wealth and privilege, he fights for glory.

Archaeologists dig beneath the Colosseum to uncover the Roman games, gladiator secrets and remains of ancient beasts. (S1, ep 2) 7+.

Experts reveal a different picture of the Dark Ages, as they unravel the mysteries of the treasure hoard unearthed by a metal detector enthusiast in 2009. 7+.