Teeming with problems, cities in Africa, Asia, and the Middle East try a new approach – building private cities from scratch.
Just like the missionaries who carried Christianity to Africa's most populous nation a century ago, millions of Nigeria's diaspora are doing the exact same – in reverse – with a full-bodied pentecostal version of the faith.
Regional leaders appear to have clinched a deal between feuding military factions and restored the rule of civilian President Michel Kafando ahead of presidential elections due next month.
Pro-government troops have taken control of key parts of the capital. Regional leaders are also ramping up negotiations.
A method that has proved powerful in bringing reconciliation after the civil war is being deployed to help families and communities torn apart by the Ebola crisis.