The cover story in the December, 2015 issue of National Geographic Magazine is "How the Virgin Mary Became the World’s Most Powerful Woman." The opening line of the article reads "Mary barely speaks in the New Testament, but her image and legacy are found and celebrated around the world." 

The issue is currently available at stores or can be read at this link. An accompanying TV show will be shown on the National Geographic Channel on Sunday, December 13 at 8PM.