The Roman Catholic church is a spacious building of the early 19th century.
In the Roman Catholic Church the vigil is now usually celebrated on the morning of the day preceding the festival, except at Christmas, when a midnight mass is celebrated, and on Easter Eve.
Of the numerous churches in the city the most interesting are the Stiftskirche, with two towers, a fine specimen of 15th-century Gothic; the Leonhardskirche, also a Gothic building of the 15th century; the Hospitalkirche, restored in 1841, the cloisters of which contain the tomb of Johann Reuchlin; the fine modern Gothic church of St John; the new Roman Catholic church of St Nicholas; the Friedenskirche; and the English church.
At the present time, so far as the Roman Catholic Church is concerned, apparelled albs are only in regular use at Milan (Ambrosian Rite), and, partially, in certain churches in Spain.
The substance of the claim to infallibility made by the Roman Catholic Church is that the Church and the pope cannot err when solemnly enunciating, as binding on all the faithful, a decision on a question of faith or morals.