Peter Biles profiles Simba Makoni, who is standing against Robert Mugabe in the election.
Kirsty Young's castaway is writer Tariq Ali.
2/2 The experiences of people living in the 60s housing development of Ballymun, near Dublin.
Kathmandu correspondent Charles Haviland examines the history and culture of the Gurkhas.
1/2 The ancient country estate of Scadbury lies on the edge of south London.
Kirsty Young's castaway is actress Liz Smith.
John Kampfner profiles Liberal Democrat leader Nick Clegg.
Kirsty Young's castaway is singer Michael Ball.
Laurie Anderson profiles one of the most original writers and thinkers of the 20th century
Colleagues and friends discuss Michelle Obama's influence on her husband's campaign.