Katty Kay in New York and Christian Fraser in Manchester report on the events that are shaping our world.

Michael Portillo continues his journey through southern Scotland. He celebrates Victorian iron and steel in Motherwell, admiring the Forth Rail Bridge. Show more

Olivia Horsfall Turner looks at plans to radically reconstruct 17th-century London and 1940s Glasgow by Sir Christopher Wren and Robert Bruce respectively. Show more

In the first BBC documentary to be filmed entirely on smartphones, Mark Miodownik reveals the weird materials that have built our high-tech world. Show more

Series revealing the secrets of the world's biggest machines. A multimillion-pound Boeing 747 is broken down to parts and reassembled for flight. Show more

Gabriel Weston looks at cases that were solved by examining the smallest traces of forensic evidence, and investigates the cutting-edge techniques being used today. Show more

Wildlife cameraman Colin Stafford-Johnson revisits a gang of crested black macaques on the Indonesian island of Sulawesi, 25 years after his first encounter. Show more

Series looking at the history of 20th-century farming in Britain. How the country became self-sufficient in producing bread-making wheat after the Second World War. Show more

Film charting the evolution of Sherlock Holmes on screen, from silent movies to the latest film and television versions. Featuring contributions from Sherlocks past and present. Show more

In the first BBC documentary to be filmed entirely on smartphones, Mark Miodownik reveals the weird materials that have built our high-tech world. Show more