Saint Nicholas Church is a palace church with a history of nearly 900 years. It is the largest and oldest church in the city. Saint Nicholas Church is a Roman and later Gothic style of architecture. It and Thomas Church used to be Bach's main workplace; Bach's major songs were premiered here. The church also has a large four-handed organ. St. Nicholas Church is famous all over the world because it paved the way for the reunification of Germany as the starting point of "peaceful evolution" in 1989. The church is located in the Roman Square. Visitors here will not neglect the famous church. The appearance of the church is also distinctive. The church is not very large, but the sharp bell tower is very striking.