Russian Orthodox churches are places of worship for the Russian Orthodox Church, one of the largest branches of Eastern Orthodoxy. These churches are known for their distinctive architecture, often featuring onion-shaped domes and intricate frescoes. They play a central role in the spiritual life of the Russian people, hosting various religious services and ceremonies. The Russian Orthodox Church emphasizes tradition and ritual, with services conducted in Old Church Slavonic. Iconography is significant, with religious icons adorning the walls, serving as windows to the divine. These churches are not only places of worship but also cultural landmarks, reflecting Russia's rich history and religious heritage.