Paper money is going out of fashion in China, but is the rise of mobile payments about convenience or control, asks Celia Hatton?

Mark Lowen reflects on the 5 years he has spent reporting from Istanbul and beyond.

Juliet Rix travels to the far east of Russia, where she finds a community trying to reconcile tradition with modern-life.

'Gravity biking' involves hurtling down precipitous mountain roads on specially-modified bikes. Simon Maybin meets a group of 'gravitosos' in Colombia and finds they have a complicated relationship with death.

Presented by Caroline Wyatt.