attacked the Janissary patrols in the neighbourhood, claiming that they were defending themselves against mistreatment by the local Janissary unit; those who were caught after the attack were executed. In 1985, Balat was inscribed on the UNESCO World Heritage List as one of the Historic Areas of Istanbul, and in the late 1990s and early 2000s was the subject of a number of controversial renovation and revitalisation projects. Attractions The Church of St. Stephen of the Bulgars (AKA The Iron Church) stands on the shore of the Golden Horn where Fener runs into neighbouring Balat and is unique in that it was built entirely from prefabricated iron shipped down the Danube from Vienna and then reconstructed in Balat. It is the base for the Bulgarian Exarchate which broke away from the Orthodox Patriarchate in 1872. The church reopened after complete restoration in 2018. Originally founded in the 15th century to serve a congregation of Jews from Ochrid, the Ahrida Synagogue contains a beautiful wooden bema (pulpit) and is historically important because it was where Sabbetai Tsvi announced his breakaway beliefs in 1666. Originally built in the 15th century for a congregation of Jews from Bulgaria, the Yanbol Synagogue has a particularly beautiful painted ceiling. The house of historian Dimitri Cantemir (1673-1723) sits to the right of the steps that form Merdivenli Mektep Sokak. Although it has been restored ir has since been absorbed into the grounds of a cafe. The Church of Hagios Georgios Metochi is enclosed in a large compound off Vodina Caddesi and is usually open on the St George's Day. The original church on the site was probably a chapel for one of the governors of Wallachia but by the 17th century it had apparently become a metochion, closely associated with the Church of the Holy Sepulchre in Jerusalem. It was here that the so-called Archimedes Palimpsest was discovered in the early 20th century when a scholar revealed that seven books written by the Greek mathematician Archimedes had been reused to create a prayer-book in the 13th century. Three of them are not known in any other copies. The large Armenian Church of Surp Hreşdagabed (Church of the Archangels) was built over an ayazma (sacred spring) in the 16th century but rebuilt in the 18th century. Its 19th-century school building now serves as a warehouse used by the city's rubbish collectors. In his travel book Dervish, the