Iconostasis of the Transfiguration Cathedral.

The iconostasis is a wall of icons and religious paintings separating the nave from the sanctuary
of the church, behind which only priests are allowed. Typically, there are five rows of icons
(there may sometimes be six). The bottom row, called the “Sovereign”, depicts Christ to the right
of the Holy Door and the Virgin Mary to the left. The second icon on the right usually depicts
the patron saint or feast day to which the church is dedicated (in this case, the Transfiguration).
Above this will be two interchangeable tiers – the Deisis (in the centre of which is an icon of
Christ Enthroned, flanked by the Virgin Mary and St. John the Baptist, and sometimes other saints
and angels) and the Twelve Great Feasts, and above these a further two tiers depicting
Old Testament Prophets and Patriarchs.
There might occasionally be further tiers of smaller icons depicting saints of local significance.