Experts look at the history and power of volcanoes and ask if modern cities face annihilation in a mega-eruption.
(00:54)Watch Nigel Tufnel's unorthodox theory on how Stonehenge was built with the help of dinosaur saliva and why aliens didn't build...
(01:40)Australia's Hardest Prison
(00:41)Richard Hammond scales this extraordinary structure to discover its engineering connections.
(01:10)The Hubble space telescope has the most powerful window on soaring star factories but astronauts will travel back into space to...
(00:50)The abrupt collapse of the world’s mountain glaciers raises even more disturbing questions about the earth’s biggest tracts...
(02:47)Over the millennia, the expansion and contraction of ice across the continents has fundamentally altered the planet, gouging ou...
(02:54)Chris Barrie talks about his favourite machines, the hairy moments whilst filming this series and much more.
(02:02)In 2007, eight guys who knew each other from the streets of New York, tattoo parlors, and hot rod shows, found they shared anot...
(03:00)Ten a.m., December 8. It’s just 25 Fahrenheit degrees in Queens. But inside Rescue Ink’s headquarters, things are heating up.
(03:59)Gizmo and Indigo, Diego, Valley & Whiskey
(04:40)Mini submarines used to smuggle cocaine out of the Colombian jungle.
(01:15)The aluminum body is submerged into electrostatic coat to protect against corrosion.
(03:00)Taking 5 days to build, there is no place for mass production in this high-end, super sports car business.
(02:45)Chef legend, Ettore Bocchia, uses unusual ingredients, including liquid nitrogen, in his molecular gastronomy.
(02:59)With contracts averaging 8 months on board, life working and living at sea is not for everyone!
(03:05)Leading the expedition is Dr. Enric Sala, a National Geographic Explorer and research scientist at Spain’s National Council.
(00:32)Blue holes time capsules webisode from Diving the Labyrinth series on National Geographic Channel
(03:05)Discover why predators do not always hunt for food.
(03:02)Discover a peculiar way to dive in the heart of Mexico City.
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