Church of Saint George, Sofia

The Church of Saint George is a late antique red brick rotunda in Sofia, Bulgaria [1]. Built in the early 4th century CE as Roman baths, it became a church inside the walls of Serdica, capital of ancient Dacia Mediterranea during the Roman and Byzantine eras [1]. The building, a cylindrical domed structure built on a square base, is famous for the 12th-, 13th-, and 14th-century frescoes inside the central dome [1]. Three layers of frescoes have been discovered, the earliest dating from the 10th century [1]. Frescoes of 22 prophets over two metres tall crown the dome [1]. Painted over during the Ottoman era, when the building was used as a mosque, these frescoes were only uncovered and restored in the 20th century [1].