Katty Kay in Washington and Christian Fraser in London report on the events that are shaping the world.

Griff Rhys Jones discovers how the National Trust looks after some of Wales's national treasures. In the final programme, Griff visits Tredegar House. Show more

Andrew Marr explores how Darwin's theory of evolution by natural selection has taken on a life of its own far beyond the world of science. Show more

Live coverage of this year's music awards ceremony from London's Eventim Apollo, featuring all of the shortlisted albums through special performances. Show more

Dr Suzannah Lipscomb explores the time when British people embraced modern design for the first time after years of austerity. However, there were also unexpected dangers lurking. Show more

Timeshift looks back on nearly two centuries of British firefighting, exploring how major incidents and the evolution of equipment have helped forge the modern fire service. Show more

Scientists now believe black holes could hold the key to answering the ultimate question: what was there before the big bang? However, researching them is next to impossible. Show more

Jonathan Meades investigates the architecture of Mussolini's Italy. He finds a dictator caught between the forces of modernism and a revivalism that harked back to ancient Rome. Show more

Andrew Marr explores how Darwin's theory of evolution by natural selection has taken on a life of its own far beyond the world of science. Show more