overview about the place This church, built in the 1830s near Karlovo Square by Prague architect Kilian Ignaz Dientzenhofer, is an important high Baroque monument. The church’s altar features a statue of John of Nepomuk from 1682 by Jan Brokoff — the wooden model for the statue on the Charles Bridge. more about the place REGULAR ROMAN CATHOLIC MASSES: Su 11:00 in German The church is open on Saturdays from 4:00 p.m. to 5:30 p.m. for silent prayer or for visits.