3/3 Revealing the breakthroughs which harnessed the elements' might to release vast power.
3/3 Featuring an amazing sequence of an osprey hunting over open water.
3/6 Approaching the halfway mark in their placements, the trainees' tempers start to fray.
1/2 Clive Lawton tells the story of two of the most famous Old Testament Prophets.
BBC World Service
2/10 Is the honey badger the world's most aggressive animal?
A trip through Depression-era America in search of the true story of Bonnie and Clyde.
Chris Beardshaw delves into the micro-world of soil to reveal what it is and how it works.
High definition Signed
On his 90th birthday, Our World asks what Robert Mugabe's legacy will be.
BBC News Channel
Stories from the Home Front 1914-1918. Robert Hall presents.
Eleven youngsters with serious behavioural problems embark on a life-changing challenge.