Professor Trevor Cox explores the world of sonic design applied to our outdoor spaces.
BBC Radio 4
Does the key to curing Alzheimer's lie with a poor extended family in Medellin, Colombia?
BBC World Service
Steve Rosenberg hears how Russians view the last 20 years since the USSR's collapse
1/3 The waterway at the heart of Istanbul where cultures and religions meet
2/2 Will Taiwan's new rapprochement with China bring opportunity?
Did EF Schumacher's landmark book Small is Beautiful inspire David Cameron's big idea?
2/2 Lucy Duran visits Cape Verde's musical centre in Mindelo on the island of Sao Vicente.
BBC Radio 3
1/2 Terence Blacker explores politically incorrect music over the last century.
9/30 Saving Species presents one of Britain's most beloved species, the dormouse.
Should it be made simpler to end the life of patients in a vegetative state?