Now playing Next South Africa South Africa hosting Olympic Games one of Mandela's last wishes - claim 06/12/2013
Now playing Next World Ukraine's enduring Holodomor horror, when millions starved in the 1930s 22/11/2013
Now playing Next Russia New study claims asteroid explosion over Russia was 30 times force of Hiroshima 07/11/2013
Now playing Next explore Uzbekistan's second largest city Samarkand - a Silk Road treasure 01/11/2013
Now playing Next Russia Russian president Vladimir Putin says gay people welcome at Winter Olympics 28/10/2013
Now playing Next Bulgaria Bulgarian students join anti-government protests, occupy university buildings 28/10/2013
Now playing Next world news Is the EU grass still greener? Young journalists reflect on the state of Europe 25/10/2013
Now playing Next United Kingdom French chef Raymond Blanc tears into Great British Bake Off finalist 21/10/2013
Now playing Next world news New tools for new movements: Using social media for civil good 17/10/2013