Nat Geo HD

After a brilliant crew manage to land an aircraft on the fritz, investigators must determine how a freshly serviced plane was released with a fatal flaw. (S22, ep 5) 7+.

After the 2018 Morandi Bridge collapse, engineers rethink safety and design. From Genoa's rebuild to Turkey's record bridge, innovation drives resilience. (S1, ep 4) 7+.

Rauray, Normandy, 1944: British commander John Semken's Sherman faces a German Tiger just 110 metres away. Against all odds, he triumphs, revealing why the Allies were winning. 7+.

Having smashed through Poland and France, the German Panzers finally met their match when they took on the Soviet Union's war-winning T-34 tanks. 7+.

The Nazis reshaped nature to fit their ideology. Using archaeology, conservation and violence to build a world that reflected their Aryan ideal.

As they march through Western Europe, Nazi architects design Nazi cities of the future. But behind epic designs lie violent ideologies of oppression. (S1, ep 8) 7+.

Hear from insiders who secretly worked on jaw-dropping aircraft and weapons systems at the highly classified military base. 7+.

Former radar specialists, pilots and security guards at Area 51 cast new light on the secretive and ground-breaking research conducted at the Groom Lake Testing Facility. 7+.

What really happens at the world's most secret military base? CIA agents and Area 51 employees reveal all about the previously-classified missions they kept covered up. 7+.

Looks at why Flight 1363 from Dryden crashed after take off. What happened? And how did the US's failure to heed Canada's mistakes end in more tragedy? (S8, ep 6) 7+.

In May 2013, a BA jet made an emergency landing at Heathrow. Five years prior, the engines on a BA plane failed. Did experts find out why? (S9, ep 2) 7+.

Experts find rare treasures and secret tunnels as they hunt for the ancient ruler's tomb in Egypt. But their biggest find is an extraordinary discovery nobody was expecting. 7+.

Paleoanthropologist Ella Al-Shamahi begins to unravel the extraordinary truth behind the legend of Tutankhamun, investigating the 'pharaoh's curse'. (1 of 2) 7+.

Ella Al-Shamahi dives deeper into the truth behind Tutankhamun's curse - can modern science can explain a number of the deaths attributed to it? (2 of 2) 7+.

What is a witch and why were they hunted? This episode explores early European trials, from Trier to King James VI of Scotland. (S1, ep 1) 18+.

Stanley digs into the time-honored recipes of this famous region and discovers how these dishes are being kept alive and reinvigorated for the future. (S2, ep 5) 7+.