Former Spice Girl Geri Horner looks back on the 1990s and reflects on her own incredible journey from working-class Watford girl to international superstar. She describes it as a decade of hope and opportunity that gave young people the freedom to be themselves and break down barriers.

Marina Abramovic is the reigning queen of performance art. She invites Alan Yentob into her home, opens up her enormous personal archive and travels back to her birthplace, Belgrade. Her early, provocative work was once dismissed, but today thousands go to see her perform pieces that can last for weeks, even months at a time. By using just her own body and pushing her physical and psychological boundaries, she has become an international artistic superstar.

What would happen if all of the world's volcanoes erupted on a single day? Today, some 40 volcanoes are currently erupting, and more than a thousand sleeping giants could awake anytime. We join scientists around the globe as they deploy the latest technology to understand and predict volcanic behavior. Spectacular footage of past and current eruptions, combined with CGI based upon the latest scientific discoveries, puts us right in the heart of volcanoes. Then, by speeding up the action into a single day, we get a breathtaking new perspective on the remarkable forces that have shaped our planet for millions of years.

An intimate portrait of the spectacular Drakensberg - 'dragon mountains' - of South Africa, following giant antelope, bone-cracking vultures and raucous baboons as they struggle to survive in a land of extremes.

More than 200 years ago, a scientist named Alexander von Humboldt embarked on a perilous five-year journey through the Venezuelan jungles and Andean Mountains of South America. At the time, it was believed that the world was less than 6,000 years old. Humboldt's groundbreaking observations and theories would not only inspire Charles Darwin, but change our understanding of nature--and the role human's plays in it--forever. Follow historian and best-selling author Andrea Wulf as she recounts his footsteps and discoveries.

History of the prison and the crimes of its most notorious inmates, as well as uncovering scandals hidden within its walls. The facility was built in 1852 and initially housed both male and female prisoners. However, in 1902 it became a female-only jail and had a new gallows installed, with its first victims being serial baby killers Amelia Sach and Annie Walters. Suffragettes imprisoned there were treated as common criminals and when some of them began hunger strikes, the regime's response was brutal. The programme ends by taking a look at the prison during the Second World War and up to 1948.

Gorillas: Rumble In The Jungle
Gorillas live in complex social groups led by a dominant male 'silverback'. He is intelligent and powerful, fiercely leading his troop through the dangers of the jungle. Gorillas are like us in so many ways, but their existence is under threat.

How can we cope with this tricky virus now rampant worldwide? The key to this battle lies in our immune system. Through the high-tech "eyes" of next-generation microscopes, we will see how our immune defense corps combat against pathogens and what mechanism is expected to help develop treatment.

Explores the personality of the man behind the crimes - on the surface a mild-mannered civil servant who admitted to murdering up to 15 young men over a four-year period in the late 1980s and early 1980s, disposing of their bodies in the garden and down the drain. The film includes footage of an interview Nilsen gave to ITV at Albany Prison in 1992, contributions from victims' families and insights from criminologist David Wilson, who corresponded with Nilsen over several decades. Narrated by David Tennant.

Nearly twice the size of the United States, Russia is the biggest country on Earth. From the subtropics to the arctic and the Atlantic Ocean to the Pacific; giant lakes, active volcanoes and endless forests.