The Eastern Orthodox Church, officially the Orthodox Catholic Church, also known as the Greek Orthodox Church is a Christian communion of autocephalous national and regional Eastern Christian churches
Saint George's Cathedral in Istanbul, Turkey
Christ Pantocrator, sixth century, Saint Catherine's Monastery, Sinai; the oldest known icon of Christ, in one of the oldest monasteries in the world
Emperor Constantine presents a representation of the city of Constantinople as tribute to an enthroned Mary and baby Jesus in this church mosaic (Hagia Sophia, c. 1000).
Eastern Orthodox icon of St. John the Baptist, 14th century, North Macedonia
The Russian Orthodox Church, also officially known as the Moscow Patriarchate, is an autocephalous Eastern Orthodox Christian church. It has 194 dioceses inside Russia. The primate of the ROC is the p
Cathedral of Christ the Saviour in Moscow, Russia
Russian Orthodox monks defended the Trinity monastery against Polish troops during the Time of Troubles. Painting by Sergey Miloradovich.
An Old Believer Priest, Nikita Pustosviat, Disputing the Matters of Faith with Patriarch Joachim, painting by Vasily Perov
St. Sophia-Assumption Cathedral in Tobolsk