FILE - In this June 30, 2013, file photo, the prison is seen on Robben Island, South Africa, where former South African president Nelson Mandela spent 18 years of his 27-year prison term locked up by the former apartheid government. The centennial of Mandela's birth is July 18, and those wishing to make a pilgrimage to honor his legacy will find a number of sites around South Africa, from the villages of his childhood to museums and historic sites about apartheid. (AP Photo/Carolyn Kaster, File)