Bucharest's Great Synagogue, often called the Great Polish Synagogue, was built from 1845 -1846 by the Ashkenazi Polish-Jewish community. Rather plain on the outside the interior is an impressive. colourful mixture of baroque and rococo styles, and the Great Synagogue is perhaps today the most important Jewish building in the country. The synagogue hosts an excellent exhibition dedicated to Jewish martyrs, and to Moses Rosen, who served as Romania's Chief Rabbi for 30 years until his death in 1994. Guided tours are available (phone ahead). The building also continues to serve as an active place of worship.