The Pearl Waterfall, Jiuzhaigou Valley, China The founder of Nigeria’s second largest mobile phone network, Globacom, is notoriously reclusive, Forbes reports , hardly ever granting press interviews and always traveling with plenty of bodyguards. He is worth $4.6 billion with a portion of his wealth also derived from oil profits – he has the rights to some of Nigeria’s lucrative oil fields that his other company, Conoil Producing, mines. Spirit Island, Magligne Lake, Alberta, Canada