St. Peter's cathedral, since 1209, is one of the oldest and most precious architectural monuments. This beautiful Gothic church was added to the UNESCO world heritage list in 1997. The church's original wooden tower has been burnt several times in the course of history, and the church itself was severely damaged in 1941 during the war. From 1954-1973, the building was restored with a new tower reconstructed out of metal. The clock on the tower symbolizes vigilance and guards the city from evil. There are two observation grounds in the tower; at the height of 57 meters (187 feet) and 72 meters (236 feet), the latter one is open to visitors. St. Peter's cathedral is a Lutheran church. Nowadays, apart from the services held on Sundays, regular exhibitions and concerts take place in the church.
- Open Hours: Tuesday to Sunday from 10:00 AM to 05:00 PM