Little Hagia Sophia Mosque

This guide to Little Hagia Sophia in Istanbul traces the church a condemned Byzantine official named Justinian vowed to two soldier-saints after his life was spared, and the debate over whether its unusual domed design was an early rehearsal for the great Hagia Sophia nearby. It also follows a puzzle carved into the marble colonnade, where only one of the two saints the church honors is actually named. Look for the inscription band as you take in the octagonal ring of arches.