As President Trump takes office, Katty Kay in Washington and Christian Fraser in London report on the events that are shaping our world.

How the Hunter brothers transformed medicine and art in 18th-century Britain, believing that anatomy could only be learnt by performing dissections. Show more

Series following wildlife in Yellowstone. As the snow melts the extent of Yellowstone is revealed. But summer here is fickle - August is the only month when it does not snow. Show more

Lucy looks at the beginning of the Romanovs' reign, from Mikhail to Peter the Great, the tsar determined to modernise Russia at the end of the 17th century. Show more

Using the BBC film archives, Vanessa Collingridge explores how our view of Cleopatra has changed over the years, and how she has become lost amid myth, cliche and propaganda. Show more

Documentary. The team dives into one of the world's most hostile environments, beneath the polar ice cap, to explore how the ice is shrinking and how this may affect the climate. Show more

Mark Miodownik shows that some of the everyday objects that are often taken for granted are in fact little pieces of domestic magic - from razor blades to tights. Show more

Documentary looking at the role of the toilet in our culture, exploring its social history in Britain and abroad, and finding possible future solutions to global sanitation issues. Show more

Dr James Fox tells the story of Vienna in 1908, when Klimt painted The Kiss and Freud revealed the Oedipus complex, but also when Adolf Hitler arrived in the city. Show more

Lucy looks at the beginning of the Romanovs' reign, from Mikhail to Peter the Great, the tsar determined to modernise Russia at the end of the 17th century. Show more