Byzantine art developed in the Byzantine Empire centered in Constantinople from the 4th century AD until the fall of Constantinople in 1453. It was focused on creating religious icons and decorating churches. Stylistically, Byzantine art was less focused on naturalism and more interested in mystical spiritual themes depicted through flat, two-dimensional figures. The three periods of Byzantine art - Early, Middle, and Late - saw the development and spread of distinctive architectural and artistic styles through the Byzantine Empire and areas under its cultural influence like Kievan Rus and Russia.