Bucharest's Great Synagogue was built from 1845 -1846 by the Ashkenazi Polish-Jewish community. With an impressive mixture of baroque and rococo architectural styles, the Great Synagogue remains the most important Jewish building in the country. The synagogue hosts an excellent exhibition dedicated to Romania's Jewish martyrs, and to Dr. Moses Rosen, who served as Romania's Chief Rabbi for 30 years until his death in 1994.