Istanbul is, famously, the only city in the world to straddle two continents - Europe and Asia. The dividing line is the Bosphorus and Edward Stourton has been exploring the life and rich history of this 19 mile long stretch of water.

The Bosphorus gives Istanbul its unique character, but, as he discovers in this, the last of the series, having a foot in both Europe and Asia forces the people who live there to ask themselves interesting questions about their identity and the future of Turkey.

Producer: Phil Pegum. Show less