Nat Geo HD Schedule, Today (United Kingdom)

Flesh, Bones, Ketamine and Drones: Customs and Border Protection in Philadelphia discover ketamine hidden in clothing and human remains manifested as Halloween decorations. 7+. (S7, ep 8)

It's an 800-year-old icon with a state-of-the-art smoke detector - but how did Notre Dame cathedral catch fire? Plus, is there such a thing as an earthquake-proof building? 7+. (S1, ep 2)

Space Rockets: Discover the story of how space rockets are built - from metal sheets to a 1.3-million pound-heavy service to the stars - with US rocket builder ULA. (S1, ep 7)

Airplane Meals: Gate Gourmet are the world's largest airline caterers, producing millions of meals from their LA kitchen. Go behind the scenes to discover how. (S1, ep 11)

In the Hot House: Discover why a hot house is essential to growing the sweetest tomatoes. Plus, a look at how machines can make the best gnocchi in 10 minutes. (S1, ep 13) RATING: AA

Come Fly with Me: Discover how 32,000 delectably nutritious bagels are made in 8 hours. Meanwhile, a look at how organic carrots can make a delicious vegan dessert. (S1, ep 14) RATING: AA

Georgia Cotton Gin: The crew head to a disused cotton gin in Georgia, where a depression-era portrait, a Zenith radio and a home-made hot rod set their hearts racing. (S1, ep 6). All Ages.

Pabst Blue Ribbon Factory: Jay and the team search the former headquarters of Pabst Brewing Company, finding an intriguing blueprint and valuable collectibles. (S1, ep 7). All Ages.

Good News Bears: The Columbus Zoo's new resident, a polar bear named Lee, arrives in Ohio and must get through quarantine. RATING: AA (S1, ep 12)

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.

Pumpkin Pie & Cranberry Sauce: Celebrate Thanksgiving with this deep dive into stuffing, gluten-free pumpkin pie, turkey-shaped treats, and farm-fresh cranberry sauce. RATING: AA (S6, ep 7)

Cheesy Tamales & Tequila Margarita: Take a bite out of some fiesta favourites, including chili and cheese tamales, tequila margaritas and Mexican wedding cookies. RATING: AA (S6, ep 8)

North Sea Nightmare: When a high-tech turboprop is struck by lightning, it plunges into a terrifying nosedive. Seconds before impact, the crew regain control. What happened? RATING: NU7

The Wolfpack: July 1940. In the North Atlantic, a British escort pins down one of Germany's top U-boat captains. Otto Kretschmer and crew face a barrage of underwater bombs.

Atlantic Wall: A look at the deadly and resilient weapons and constructions built by the Nazis in their bid for world domination. All ages. (S1, ep 1)

Ford Cortina Mk 3: The hosts head to Leicester to pick up a Mk 3 Ford Cortina, once Britain's top selling car but now on the automotive endangered species list. All ages.

My Big Fat Weed Run: Homeland Security Investigations cracks down on counterfeit goods in Kansas City, while CBP uncovers a passenger with $200k worth of marijuana. 7+. (S7, ep 4)

High Rise Catastrophe: Investigators uncover a problem threatening every 747 in the sky as they delve into the worst aviation disaster ever to occur in the Netherlands. RATING: AA

Island of Fire: While the Canadian troops distracted German forces, the Allies mounted an amphibious assault on the last Nazi stronghold guarding Antwerp port - Walcheren Island. (S2, ep 2)

Tutankhamun's Treasures: Archaeologists unearth a lost treasure box from the pharaoh's tomb and join the team transporting his priceless artefacts across the desert. All ages. (S1, ep 1)

Lotus Elise: Tim and Fuzz steal away cancer patient Sarah's 1997 Lotus Elise as they try to put a smile back on her face by secretly fixing up her much-loved motor. RATING: AA (S7, ep 1)

Seconds From Disaster: A look at the events that led to the crash of Swissair Flight 111 in 1998. All 229 people on board were killed when it hit the Atlantic Ocean off Canada. RATING: AA

Explosive Evidence: When Air India Flight 182 disappeared from the radar, controllers were left baffled. Investigators later discovered a sinister reason for the deadly crash. All Ages.

Glass - 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. 16+. (S1, ep 3)

Pitch Problems: Pitch problems lead to catastrophic impacts that leave little evidence behind.

Military Crash Conspiracy: A shocking look at the mysterious crash of Arrow Air Flight 1285, which killed 248 returning American soldiers when it dropped from the sky in 1985. RATING: AA

Heading To Disaster: A look at the devastating crash of Ethiopian Airlines Flight 409 in 2010. After ruling out terrorists, investigators came to a controversial conclusion. RATING: AA