1/5 In Bogota, Pico Iyer first reveals how his travels are shaped by writer Graham Greene.
BBC Radio 4
BBC Radio 4 FM
5/5 Nature writer Kathleen Jamie makes a few house calls and learns to dit-dit diddle-dit.
4/5 Scottish poet and travel writer Kathleen Jamie introduces us to the world of gannets.
3/5 Kathleen Jamie recalls how a simple cup shaped her future. Read by Maureen Beattie.
2/5 Jamie recalls how the loss of her mother affected her and took her on an unlikely journey.
1/5 Scottish poet and travel writer Kathleen Jamie journeys to a world of ice and silence.
5/5 Hostilities end and, 20 years on, a look at how life has changed on Logavina Street.
4/5 A ceasefire and new causes of anguish.
3/5 Coming of age in a warzone.
2/5 A death in one of Logavina Street's families.
1/5 Bellicose rumbles are denied.
5/5 June 1944 and the Allies prepare for the Normandy landings, taking the Germans by surprise
4/5 The alarm is raised when a high-profile German businessman with ties to MI5 is arrested.
3/5 A new recruit, Lily Sergeyev, offers her services to the British Double Cross team.
2/5 By 1941 the Double Cross agents are drip-feeding false military information to the Germans
1/5 A team of agents is recruited to work as part of the Double Cross System.
5/5 Bernie Krause turns to the sounds and noises generated by modern human beings.
4/5 Bernie Krause explores how organisms evolve to acoustically structure their signals.
3/5 Why do giraffes vocalise in frequencies so low that humans can't hear them?
2/5 The sounds of the geophony were the first heard on Earth.
1/5 Bernie Krause shows why it is critical to preserve our remaining natural soundscapes.