How well do you know the world's religions? Take the quiz

Explore the world's most fascinating faiths: "Believer with Reza Aslan" airs Sundays at 10 p.m. ET/PT. Also, learn about the fascinating new scientific insights into the historical Jesus: "Finding Jesus: Faith, Fact, Forgery" airs Sundays at 9 p.m. ET/PT on CNN.