An icon is a religious work of art, most commonly a painting, in the cultures of the Eastern Orthodox, Oriental Orthodox, Catholic, and Lutheran churches. The most common subjects include Jesus, Mary,
The Ladder of Divine Ascent depicts monks ascending to Jesus in heaven in the top right. 12th century, Saint Catherine's Monastery.
Russian icon of the Holy Trinity
The icon of St Nicolas carved in stone (between c. 12 and 15th centuries), at the Radomysl Castle, in Ukraine
Luke painting the Theotokos of Vladimir (16th century, Pskov)