Cave of Forgotten Dreams

A look at the state of the global environment including visionary and practical solutions for restoring the planet's ecosystems. Featuring ongoing dialogues of experts from all over the world, including former Soviet Prime Minister Mikhail Gorbachev, renowned scientist Stephen Hawking, former head of the CIA R. James Woolse

In 2009 a team of British cavers went on an expedition deep within the jungle of central Vietnam. To their amazement they discovered an enormous cave which they believe to be the biggest in the world. The team, the first humans ever to enter the cave, traveled 6 kilometers underground until their way was blocked by a gigantic rock face they dubbed 'The Great Wall of Vietnam'. Now they have returned, but this time with the right equipment to climb the wall and with a geologist and zoologist to discover if this is indeed the Biggest Cave in the World and what secrets lie deep within?

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. A team of scientists embarks on a journey of exploration to expose both the science and threats behind three unique features of the zone - rare plants and animals, odd geological phenomenon, and striking remnants of a Native American pilgrimage like no other.

A doomed love triangle between intrepid French scientists Katia and Maurice Krafft, and their beloved volcanoes.

Sir David Attenborough joins an archaeological dig uncovering Britain's biggest mammoth discovery in almost 20 years. In 2017, in a gravel quarry near Swindon, two amateur fossil hunters found an extraordinary cache of Ice Age mammoth remains and a stone hand-axe made by a Neanderthal.

In France’s last presidential election, Marine Le Pen, a right-wing candidate, won over 30 per cent of the vote after an attempt to rebrand a party long associated with her controversial father, Jean-Marie Le Pen. See how three of her supporters faced similar obstacles in changing the narrative.

Uncover the little-known stories of the first Black pilots, engineers and scientists seeking to break the bonds of social injustice to reach for the stars, including Guion Bluford, Ed Dwight and Charles Bolden among many others.

Mountain Gorilla takes us to a remote range of volcanic mountains in Africa, described by those who have been there as ""one of the most beautiful places in the world"", and home to the few hundred remaining mountain gorillas. In spending a day with a gorilla family in the mountain forest, audiences will be captivated by these intelligent and curious animals, as they eat, sleep, play and interact with each other. Although gorillas have been much-maligned in our popular culture, viewers will finally ""meet the legend"" face to face, and learn about their uncertain future.

On a journey through the interior of the earth, we learn about the life and dreams of a swiss explorer who searches for caves and underground rivers in a sector marked by violence and armed conflict in Colombia. This underground labyrinth is a metaphor about a dark past, buried deep within the soul, where old war wounds heal with the infinite passage of time.

Featuring real interviews and archive footage, this documentary gives an overview of Gaddafi's tyrannical reign over Libya from his early life until his death in 2011.

A scientist explains how the savagery and efficiency of the insect world could result in their taking over the world.