NGC goes inside one of the greatest natural marvels on the planet - a giant crystal cave described as Superman's fortress, with magnificent crystals up to 36 feet long and weighing 55 tons. A team of experts venture into the cavern, enduring scorching-hot temperatures that could kill a human after just 15 minutes of exposure. They'll push the boundaries of physical limitation to explore a crevasse that could lead to another - and perhaps more spectacular - crystal cave.
On another planet in the distant past, a Gelfling embarks on a quest to find the missing shard of a magical crystal and restore order to his world, before the grotesque race of Skeksis find and use the crystal for evil.
When you’ve clawed your way to the top of the food chain, you have to fight to stay there. Experience this harsh reality through the eyes of the determined predators that rely on skill, instinct and evolution to survive.
What strange forces saved one isolated section along the Upper Mississippi River from the repeated crushing and scouring effects of glaciers during the last two million years? And what pre-Ice Age throwbacks survived here in this unique geologic refuge that holds more Native American effigy mounds, petroglyph caves, strange geological features, and rare species than anywhere in the Midwest? These questions and more are answered in this captivating new documentary.
This documentary combines archaeological and geological evidence with tales passed down through generations, uncovering a dramatic history of cannibals, vast stone cities, human sacrifice, and the epic voyagers who colonised the Pacific centuries before Columbus made it to America.
World War II soldier-turned-U.S. marshal Teddy Daniels investigates the disappearance of a patient from a hospital for the criminally insane, but his efforts are compromised by his own troubling visions and by Dr.
After young Kirra (Bindi Irwin) leaves her Australian home to summer with her grandfather (Beau Bridges) in South Africa, she soon discovers a baby orca stranded in the lagoon near her grandfather’s rundown seaside amusement park.