The latest national and international news, exploring the day's events from a global perspective.

Griff Rhys Jones discovers how the National Trust looks after some of Wales's national treasures. He begins with the 157 miles of coastline it owns and cares for. Show more

Mark Evans tells the surprising story of the hidden powerhouse behind the globalised world, the diesel engine, a 19th-century invention that has become indispensable to the 21st. Show more

Stewart McPherson explores the UK Overseas Territories. He begins on the island of Tristan da Cunha, then visits the Falkland Islands, South Georgia and Antarctica. Show more

Simon Sebag Montefiore continues his history of Jerusalem by discovering the impact of Islam and the crusaders' attempt to win it back for Christianity. Show more

Documentary in which David Hayman explores the rich history of one of Scotland's best-loved boats, the Clyde Puffer. Show more

Neil Oliver continues the epic story of how Britain came to be. He focuses on the great social transformation: a change from hunting and gathering to farming. Show more

Paul Merton's journey through Hollywood reaches the 1920s when in prohibition America the cinema industry was on a collision course with its public because of a run of scandals. Show more

Dr Janina Ramirez unlocks the secrets of a centuries-old masterpiece in glass, the Great East Window at York Minster, the largest expanse of medieval stained glass in the UK. Show more

Stewart McPherson explores the UK Overseas Territories. He begins on the island of Tristan da Cunha, then visits the Falkland Islands, South Georgia and Antarctica. Show more