Byzantine style, ornate details, intricate patterns, gold accents, mosaics, domes, arches, columns, Christian themes, biblical scenes, Virgin Mary, Jesus Christ, saints, apostles, angels, heaven, hell, Byzantine Empire, Constantinople, Hagia Sophia, Istanbul, Greek, Roman, Eastern Orthodox influences, Middle Eastern trade routes, cultural exchange, Crusades, Islamic architecture, ornate calligraphy, intricate textiles, luxurious fabrics, marble, granite, stone carvings, gilded icons, frescoes, apse, altar, nave, baptistery, Byzantine mosaics, Justinian style, Theodora style, Macedonian Renaissance.