Nat Geo HD Schedule, Today (United Kingdom)

Fight to the Finish: A Boeing 707 loses both right engines, an out-of-control aircraft needs managing and a bomb explodes aboard PA 434. 7+. (S6, ep 2)

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. 7+. (S1, ep 4)

Lake House Riches: Action-packed series following a demolition crew. After winning a blind bid on a property, they empty it of its valuables before tearing it to the ground. All ages.

House-Fire To Fortune: Danley Demolition Crew gamble on a fire-damaged property. Can they salvage enough treasure from its ashes to cover the cost of the demolition?. All ages.

Pasta the Olives: Discover how succulent stuffed olives get from branch to jar, and how 12,000 plates of tasty tortellini are made per day. (S1, ep 21) RATING: AA

In a Jam: A look at how traditional methods still factor into modern-day croissant production and why shredding is key to making delicious rhubarb-strawberry jam. (S1, ep 22) RATING: AA

Newcomers: The hunters visit a local dentist in search of precious metal to melt for cash. Plus, can they find treasure in medical supplies and aeroplane engines?. All ages.

Newbies Dash For Cash: The treasure hunters visit estate sales and auction houses in search of silverware. But can they bag profit-making pieces at the right prices?. All ages.

If You Give a Giraffe a Pedicure: It's springtime at the Columbus Zoo, which means annual giraffe checkups with extensive hoof care and more. (S2, ep 4)

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 holiday is your best! U.

French Fries & Frozen Pizza: Follow the incredible trajectory of McDonald's french fries, before finding out what it takes to produce Cracker Jack candy by the truckload. U. (S1, ep 16)

Turducken & Mustard: Take a bite out of Affy Tapples caramel apples as we uncover how they get through 20 tonnes of gooey caramel every day. U. (S1, ep 17)

Stealth Bomber Down: When a two-billion-dollar Stealth Bomber crashes in Guam, the US Air Force investigate the most expensive aviation accident of all time. All ages. (S21, ep 3)

Defying Rommel: The story of HMS Upholder and HMS Unbeaten - two British submarines who unknowingly took aim at each other while hunting Italian supply ships. (S2, ep 4). All ages.

Himmler's SS: Unscrew the evil human machine that was Himmler's SS as this eye-opening documentary about the Nazis' thirst for world domination continues. 7+. (S2, ep 4)

Vauxhall Cavalier Turbo: Tim and Fuzz head to Stockport to take on a 1994 Vauxhall Cavalier Turbo, whose owner Darren was left tetraplegic after a horrific accident. All ages. (S10, ep 9)

Pacific War Megawrecks: Experts head to the bottom of the Pacific Ocean in search of famous wrecks from World War II, including the ship that delivered the Hiroshima bomb. RATING: AA

On 20 August 2007, China Airlines Flight 120 catches fire and explodes shortly after landing and taxiing to the gate area at Naha Airport in Okinawa, Japan. All Ages.

Savage Spring: Blinded in one eye in the battle for Normandy, a defiant French-Canadian sniper sets out to liberate a Dutch city in the final days of the war. RATING: AA (S3, ep 6)

Mysteries of the Sphinx: Delving into one of the world's most enduring mysteries, archaeologists try to unravel the riddles of the Great Sphinx. RATING: AA

Porsche 356: Tim and Fuzz help Trevor, whose recent diagnosis means he's unable to finish his restoration. But his 1964 Porsche is by far the worst car they've ever taken on. All ages.

Mountain Tsunami: A look at the devastating tsunami that swept Northern Italy in 1963. Largely down to human error, the death of 2,000 people could have been avoided. But how? RATING: AA

The Plane That Vanished: Adam Air Flight 574 was miles off course when it vanished from radar. Investigators reveal why the plane crashed killing 102 people on board. (S7, ep 7) RATING: AA

Tunnels are engineering marvels, cutting through the landscape and creating direct routes - until they cave in. Plus, a bridge suddenly collapses in Miami. 7+. (S1, ep 5)

Bad Data: Bad data can be deadly. When a Stealth Bomber crashes at a US Air Force base, it becomes the most expensive aviation disaster ever. 7+. (S6, ep 3)

Death at Narita: Investigators examine similarities between a crash landing at Tokyo's Narita Airport and an accident at Newark Airport more than a decade earlier. U. (S13, ep 5)

Deadly Test: Experts investigate why XL Airways Germany Flight 888T spiralled into the Mediterranean sea in 2008. What deadly flaw was the Airbus hiding? All Ages.