A man prays during the Christmas service in Moscow, Russia, on Jan. 6, 2017. Christmas Day is celebrated by Orthodox Christians on Jan. 7. (Xinhua/Evgeny Sinitsyn)
A man prays during the Christmas service in Moscow, Russia, on Jan. 6, 2017. Christmas Day is celebrated by Orthodox Christians on Jan. 7. (Xinhua/Evgeny Sinitsyn)