Nat Geo HD | Infotainment Shows (Page: 1)

Maryland Grist Mill: Jay makes major finds under a pile of rubble in an 18th-century mill, including a set of beautiful antique tiles that could be worth $140 each. (S1, ep 3)

Run Cheetah Run: There's drama behind the scenes at The Columbus Zoo and Aquarium as a cheetah goes under the knife. Plus, twin polar bear cubs jump in at the deep end. (S1, ep 1) Also in HD

Hazards: Lightning has struck an incoming flight. As engineers assess the damage, high winds lead to runway closures and another plane starts leaking a potentially dangerous liquid. U.

Revealing the dark truth that aviation safety improves one crash at a time, Mayday investigates legendary aviation disasters to find out what went wrong and why. Based on cockpit voice recorders, accident reports and eyewitness accounts, every episode also features interviews, state-of-the-art CGI and gripping reenactments.

A New World: With the Spanish monarchy funding his trip, explorer Christopher Columbus sets sail. The discovery of the New World sparks a new age for the Spanish Empire. 7+. (S1, ep 1)

Drain the Last Wrecks of World War II: The wreckage from one of Hitler's U-boats continues to leave a poisonous Nazi legacy behind. RATING: AA

Hitler's War in the Skies: As Hitler calls for Total War, every man, woman and child is forced to play their part. The result is one of the greatest air defence systems ever. All ages.

Secrets of Loch Ness: The plug gets pulled on Scotland's famous loch as experts search for the truth about Nessie. But as the waters drain, more than a monster is revealed... RATING: AA

The hosts, along with a special car restoration team, refurbish classic four-by-fours of several clients spread across the UK and Europe.

In a quest for world domination, the Nazis built some of the biggest and deadliest pieces of military hardware and malevolent technology in history. This is the stories of the engineers who designed them and how these structures sparked a technological revolution that changed warfare forever.