The Magnuskirche is a small church in Worms, to the south of Worms Cathedral. It is the city's smallest church. Archaeological evidence and its dedication (probably identifiable with Magnus of Füssen, a Carolingian saint) suggest it originated in the 8th century - part of that building survives in the nave's north wall.
The first written record dates to 1141. It was enlarged many times between the 10th and 15th centuries and during that era served as the nearby Andreasstift's parish church. It is the oldest Lutheran church in south-west Germany, since Martin Luther stayed in it and preached in it during the 1520 Diet of Worms. After the severe damage to the city in 1689 during the Nine Years' War, the church was restored in the Baroque style in 1756. It was destroyed by Allied bombing on 21 February 1945 and restored again in 1953.
References:Visby Cathedral (also known as St. Mary’s Church) is the only survived medieval church in Visby. It was originally built for German merchants and inaugurated in 1225. Around the year 1350 the church was enlarged and converted into a basilica. The two-storey magazine was also added then above the nave as a warehouse for merchants.
Following the Reformation, the church was transformed into a parish church for the town of Visby. All other churches were abandoned. Shortly after the Reformation, in 1572, Gotland was made into its own Diocese, and the church designated its cathedral.
There is not much left of the original interior. The font is made of local red marble in the 13th century. The pulpit was made in Lübeck in 1684. There are 400 graves under the church floor.