The Shah-e Cheragh (‘King of Light’) mausoleum is the picturesque resting place of two of the martyred brothers of Ali Reza, the 8th Shia Imam. Although killed in the 9th century, the present-day burial site has been considerably developed since the Qajar era. The central courtyard has a fountain at its center, and the shrine features characteristically Iranian, intricate blue tile work and a dazzling mirrored interior, making it one of the prettiest mosques in Shiraz.