St. Peter's church was built in 1654 in dedication to Saint Peter over a medieval citadel that was erected by Frederick I and restored by Louis IX of France at the beginning of the second half of the thirteenth century. However, in the late eighteenth century the church was twice destroyed and consequently twice rebuilt. The current structure was built between 1888 and 1894 and most recently renovated in 1903. Masses are conducted in English, Spanish, Polish, and Hebrew. A schedule is available at the church and it is open to the public every day. Among contemporary worshippers are Polish foreign workers who come here to pray on Saturdays, their day off.