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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+.

At Amsterdam Central around 100 homeless people gather daily. Workers Marieke and Fikret offer help while staff tackle disruptions and bike clear-outs. (S2, ep 3) 7+.

In April 1940, German battleships infiltrate Norwegian fjords in a bid to seize key ports and secure Hitler's supply of iron ore. (S3, 1 of 6) 7+.

A fearsome new Nazi battleship, sets sail for the Atlantic with a mission to destroy Allied supply ships. (S3, 2 of 6) 7+.

German and Italian tanks roll into British-controlled Egypt in a bid to capture the vital Allied supply route through the Suez Canal. (S3, ep 3 of 6) 7+.

Experts investigate the mysterious malfunction that caused Qantas Airways Flight 72 to take a sudden nosedive over the Indian Ocean. (S17, ep 7) 7+.

Your one-stop-shop for all things cruise; bringing you the hottest destinations, ground-breaking ships and the latest deals to ensure your next cruise is your greatest one.

For years, people have reported strange sky-sightings and encounters with entities despite the stigma of sharing such experiences. Part 1.

Reports from people who say they've been abducted are explored. A Harvard psychiatrist who takes them seriously comes under attack. Part 2.

The stigma surrounding UFOs extends beyond the US government. Pilots fear for their jobs after encountering mysterious phenomena in flight. 7+.

From Angkor Wat to Ireland's Newgrange, ancient sites align with the cosmos, revealing sacred design and celestial wonder. (S1, ep 2) 7+.

one of the most versatile materials in the construction world. It's both practical and beautiful, but when it fails, it's not all it's cracked up to be.

Urban construction relies on two types of cranes to hoist the next high-rise - but when they fail, they make one big mess. Plus, discover the bad side of escalators. (S1, ep 4) 7+.

It's a vibrant New Orleans summer when Hurricane Katrina looms. Residents recall how they navigated the impending disaster. (1 of 5) 7+.

After Hurricane Katrina passed, citizens soon discovered the levees breached, quickly flooding New Orleans like a bathtub. (2 of.

Rescues continue as thousands remain trapped. In the Superdome, survival stories emerge while media shifts focus to looting over aid efforts. (3 of.

Post-Katrina, Gen. Honoré leads rescues as evacuations fail. Violence grows, militias emerge and thousands remain stranded across the city. (4 of.

Residents navigate the uncertainty of how and when they might restore their lives. In the wake of the chaos, a plan for the city unfolds. (5 of.

Marvel at Poland's salt mine, explore a Cold War bunker, uncover an ancient Egyptian site and probe China's mysterious Longyou Caves. (S1, ep 2) 7+.

After the Twin Towers fell, doubts grew - but bold new safety breakthroughs sparked a surge, as taller, stronger skyscrapers rose worldwide.

A former Special Forces soldier turned CIA officer faces a brutal call when an ally vanishes - launch a rescue or risk walking into a deadly ambush... (8 of.

Experts investigate the mysterious malfunction that caused Qantas Airways Flight 72 to take a sudden nosedive over the Indian Ocean. (S17, ep 7) 7+.

On 2 August 2005, Air France Flight 358 skidded off the runway in Toronto. An engine caught fire, trapping 300 passengers on the plane. How did they escape? 7+.

Amsterdam Central never stops. 200,000 passengers pass daily as 900 staff keep trains running safely during a huge, high-pressure rebuild. (S1, ep 2) 7+.

Tim and Fuzz restore a Citroen SM - widely considered one of the greatest French cars ever - after it suffered catastrophic engine failure on its first outing. (6 of 10) 7+.

Tim and Fuzz head to Norfolk to take on a 1962 TVR Grantura that has been off the road for nearly 50 years. (7 of 10) 7+.

A fascinating look inside the 1,000,000-square-foot American crisp factory. During the build-up to the 4 July celebrations, Frito Lay uses a million pounds of potatoes a day. 7+.

Explore Porsche's hi-tech plant, where the Panamera is made on one assembly line, there are 14 deliveries a day and not a single warehouse or forklift truck. 7+.

Your one-stop-shop for all things cruise; bringing you the hottest destinations, ground-breaking ships and the latest deals to ensure your next cruise is your greatest one.

Three catastrophic approaches provoke questions, from a turboprop disaster to an invisible culprit on the Cuban border. (S6, ep 6) 7+.

From delusional hijackers to suicidal pilots, three flights fall victim to astonishing acts of sabotage. (S5, ep 10) 7+.

Meet the world's largest 3D printer, a huge tunnel-boring machine and engineers working on a machine that can create single-piece metal parts. (S1, ep 6) 7+.

Tim and Fuzz take on a MINI Mayfair bought by Donna with her late father's inheritance. Dreaming of a Cooper, she ended up with a rust-ridden wreck. (S14, ep 5) 7+.

A look at the war strategy and catalogue of errors that led to the British sinking of the Bismarck, a wreck that killed more than 2,000 German soldiers in 1941. 7+.

An accident or an act of murder? Investigators call in the FBI when Romania suffers the deadliest air disaster in its history. (S18, ep 6) 7+.

Hitler orders the largest battleships ever seen. But how long will they last? He also demands fortified bunkers in a bid to protect his U-boats from the Allies. 7+.

After the Twin Towers fell, doubts grew - but bold new safety breakthroughs sparked a surge, as taller, stronger skyscrapers rose worldwide.

Antoni Porowski explores Mexico City's flavours, culture and colour, from fine dining to lucha libre, uncovering what makes this city unmissable.

Drowned shipwrecks and lost battlefields reveal secrets of America's most famous siege and tell how Texas, against all odds, secured its independence. 7+.

US paratroopers are dropped behind enemy lines before the D-Day landings to prevent German reinforcements from reaching the beaches. (S2, ep 1) 7+.

Experts discover a missing pilot's unwitting part in a fatal crash as they investigate the collision between United Express 5925 and a private plane. 7+.

Amsterdam erupts as 800 ships arrive and crowds surge. With 150,000 extra passengers, staff battle to control the chaos, tackle incidents and keep the station safe.

Authorities suspect a terror attack when a plane explodes after taking off from JFK. The FBI joins investigators in their search for answers. (S16, ep 4) 7+.

At JFK Airport, Homeland Security and CBP officers intercept stolen antiquities and fake visas, working on the front line to stop smuggling and fraud. (S4, ep 3) 7+.

Slamming into a mountain, Japan Airlines 123 becomes the deadliest single aircraft accident in history and threatens to ground 747s worldwide. (S22, ep 3) 7+.