Majestic cathedral is a monument of the late classicism. Three naves Catholic church in terms of rectangular. In 1948 the church was closed. During the conversion of the church into a museum, with a side towers were demolished and redone interior. Since the mid-1950s opened here museum. The building was not destroyed during the Soviet period, obviously, because it has excellent acoustics and it installed fine vintage organ. Here, under the previous government and conducted concerts of organ music. In 2001 the church was restored and transferred to believers Catholics. Here was moved greatest relic - the ancient icon of Our Lady of the salary of the XVII century. Earlier times also preserved wonderful stained glass depicting the Virgin Mary, the apostles and saints.