The latest national and international news, exploring the day's events from a global perspective.
Paul Murton follows in the footsteps of Scotland's first tourists. He travels through the central Highlands, from Glen Lyon to the Cairngorms National Park. Show more
Horizon meets researchers studying psychopathic killers to try to determine what makes people good or evil. One such scientist believes he has found the 'moral molecule'. Show more
Sir David Attenborough tells the stories of the world's best animal architects, including bower birds, hornets and the star-nosed mole. Show more
Marcus du Sautoy explores the history of Le Grand K - the world's master kilogramme - and the race to replace it now that it has been discovered to be losing weight. Show more
Documentary telling the story of publishing house Virago Press, which dared to set itself apart to champion women's literature in an industry dominated in the 1970s by men. Show more