Members of the evangelical Lakewood Church in Houston worship at a prayer service in 2005. More than 45,000 churches across the U.S. are represented by the National Association of Evangelicals. Jessica Kourkounis/AP hide caption

itoggle caption Jessica Kourkounis/AP

An activist from a nongovernmental organization participates in a demonstration June 25 in New Delhi against recent honor killings in the capital and other parts of the country. Manish Swarup/AP hide caption

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Robert Duvall on his farm in The Plains, Va. The actor is reluctant to talk about his own faith, saying it's a personal thing. Coburn Dukehart/NPR hide caption

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In China, Mazu, a folk goddess of the sea, has an estimated 160 million followers and 4,000 temples devoted to her. Here, a statue of Mazu from a village temple is paraded around Meizhou Island in southern China's Fujian province during recent birthday celebrations. Ariana Lindquist for NPR hide caption

itoggle caption Ariana Lindquist for NPR

SNCF operates the Austerlitz train station in Paris, where thousands of Jews passed through on their way to internment and concentration camps during World War II. Loic Venance/AFP/Getty Images hide caption

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Crowds of tourists in Xiamen, China, visit the Buddhist Nanputuo Temple, which has more than a thousand years of history. Academics say that as Buddhist temples become popular tourist destinations, local governments are also getting a share of the entrance fees. Louisa Lim/NPR hide caption

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Du Shuzheng rebelled against her family more than 50 years ago to become a female imam. She has trained more than 70 women to become imams, but now there are few girls who want to enter the profession. Ariana Lindquist for NPR hide caption

itoggle caption Ariana Lindquist for NPR

Yao Hong worships at a Christian church in China's Protestant heartland. She's one of about 1,000 worshippers at the church. She believes it is patriotic to believe in God, and to pray for China's revival and well-being. Ariana Lindquist for NPR hide caption

itoggle caption Ariana Lindquist for NPR