Sparkling diamonds. Exquisite emeralds. Brilliant rubies. Shimmering pearls. For centuries, these precious gems have captured humankind, leading men and women to give up fortunes - even their lives - to possess them. Join National Geographic on a journey around the globe to discover the origins of these most coveted gems. You'll see astonishing amounts of earth mined to uncover rubies in Thailand or emeralds in Colombia. You'll meet a Tennessee businessman who cultivates freshwater pearls and a California chemist who 'grows' rubies nearly identical to nature's stunning creations. And you'll witness rarely, if ever before, filmed sales of uncut diamonds - deals worth thousands of dollars sealed only with a handshake and a Hebrew phrase. Unlock a treasure chest filled with a wealth of information and the dazzling beauty of Splendid Stones.
Snow blankets the trees and green lights dance in a star-filled sky. For a brief time during the festive season, our thoughts turn to a winter wonderland, far to the north.
Supported by the National Geographic Society, the world's eminent blue whale scientists embark on a revolutionary mission: They'll find, identify, and tag California blue whales, use the DNA samples to confirm the sex of individual whales, then rejoin the massive creatures' stunning migration when they collect at a chimera known as the Costa Rica Dome.
Eye of the Leopard follows the remarkable life of one small leopard from when she is just 8 days old every step of the way until she is 3 years old and on the brink of adulthood.
To find out why sharks are drawn to Hawaii’s volcanoes, biologists Dr. Mike Heithaus and Dr. Frances Farabaugh free dive with one of the most dangerous sharks: the tiger shark.
Four and a half billion years ago, the young Earth was a hellish place-a seething chaos of meteorite impacts, volcanoes belching noxious gases, and lightning flashing through a thin, torrid.
A routine drone survey turns deadly when Ryan Johnson, a marine biologist based in South Africa, films a humpback whale being attacked and strategically drowned by a Great white shark.
Do they really launch themselves onto the shore to grab a hapless snack? See for yourself, and gain a vivid appreciation for their appetites and skills.
Popular movie trailers from 1991
These some of the most viewed trailers for movies released in 1991:
The female group "Die Hard Angels" of the Police Department's Investigation Division 1 begins a physical investigation to destroy a vicious organized crime.
Taking a break from their dreary lives, close friends Thelma and Louise embark on a short weekend trip that ends in unforeseen incriminating circumstances.
Featuring Arnold and Ahneva from Wendy Clarke's One on One video series, this video dialogue deeply connects the pair through discussion of Black brother and sisterhood.
A luxury home, a handsome husband and terrific children. But it all comes crashing down when she is accused of being a mastermind behind a brutal triple-homicide and is arrested and handcuffed in front of her own children.
Sixty year old Max is having something of a middle-age crisis. His marriage seems to go nowhere as the passion, tenderness and happiness vanished when their daughter moved out.
