1 of 9 Many Eastern Orthodox Christians from Russia to the Holy Land have been celebrating Christmas, which falls on 7 January according to the Julian calendar.
2 of 9 In Russia, the Orthodox Christmas has been an official holiday since the collapse of the Soviet Union in 1991. At the Cathedral of the Dormiton in Moscow the faithful lit candles.
3 of 9 Russian President Vladimir Putin, who says he is Russian Orthodox, attended a Christmas service in Tver, 150 km (90 miles) north of Moscow.
4 of 9 The Patriarch of Moscow and all Russia, Alexy II, remembered the Beslan siege during his sermon on Christmas Eve at the Cathedral of Christ the Saviour in Moscow on Thursday.
5 of 9 The Greek Orthodox Patriarch Irineos attended the Orthodox Christmas service at the Church of Nativity in Bethlehem early on 7 January.
6 of 9 Orthodox believers in Serbia celebrated Christmas by the Julian calendar, which is two weeks behind the 16th Century Gregorian calendar - used by the Greek Orthodox Church, among others, and by Catholics and Protestants.
7 of 9 In the medieval Montenegrin capital of Cetinje, Orthodox Serbs and Montenegrins gathered for the traditional burning of Yule logs on Christmas Eve.
8 of 9 In Turkey, Carlo Tarinas beat other divers to a wooden cross thrown into Istanbul's frigid Golden Horn waterway by Ecumenical Patriarch Bartholomew I.
9 of 9 In Lviv, western Ukraine, children paraded in national dress and sang carols - contrasting with weeks of political street protests.