The amazing Holy Union Temple synagogue was constructed in 1836, this building has served as a museum of Jewish history since 1978. A number of separate exhibitions display how the once vibrant Jewish community of Bucharest used to live, while there is also an impressive Jewish liturgical collection, most of which was assembled by Moses Rosen, Romania's chief rabbi from 1964-94 who founded the museum. The considerable Jewish contribution to Romanian culture is also well covered, although it could be argued that the biggest attraction is the building itself: the interior - split over three levels with two ornate galleries - is richly decorated from floor to ceiling. Note that repairs and renovations on the building are currently being carried out, with the exhibitions moved temporarily to Great Polish Synagogue.
