1/5 Mary Beard casts a classicist's eye over Istanbul under the Roman Emperor Constantine.
BBC Radio 3
1/2 Gerry Northam investigates the true cost of bio fuels.
BBC World Service
Find out why in 21st century Amsterdam, it's easier to be called Fatima than Mohammed
Does Britain's class system still hold people back in 2010?
Mike tries to give away cash, hears from America's new oil town and Taiwan's plastic home
2/3 At the Edge: each episode interprets this in a way that is revealing about the characte...
Could genetic manipulation succeed and enable governments to meddle with designer babies?
5/5 Richard Mabey asks whether a sense of direction should be seen as a sixth sense.
4/5 Richard Mabey on attempts over the years to analyse and understand why birds sing.
Apostle Asafo guides us around his remarkable workshops in Accra, where teenagers can l...