Cardinals enter the Sistine Chapel for the Conclave
Cardinals enter the Sistine Chapel for the Conclave on March 12, 2013 in Vatican City, Vatican. Pope Benedict XVI's successor is being chosen by the College of Cardinals in Conclave in the Sistine Chapel. The 115 cardinal-electors, meeting in strict secrecy, will need to reach a two-thirds-plus-one vote majority to elect the 266th Pontiff. (Getty Images)
From underwater mining to luxury yachts, Mohammed Al Barwani has interests in a staggering range of industries. The chairman of MB Holding explains how he built the firm from scratch to become a billion-dollar player.