St. Catherine's Church is one of the five principal Lutheran churches of Hamburg. The base of its spire, dating from the 13th century, is the second oldest building preserved in the city, after the lighthouse on Neuwerk island. It is situated on an island near what was formerly the southern boundary of the medieval city, opposite the historic harbour area on the Elbe river. It traditionally served as the church of the seamen.
The earliest attestation to the existence of the church dates back to 1256. The main body, consisting of a triple nave, was rebuilt during the mid-15th century in the north German Brick Gothic style. In 1657 a Baroque rooftop was added to the spire, which thus reached a height of 115 meters. The church was heavily damaged in an air-raid during World War II, on 30 July 1943. It left only the outer walls and the base of the spire standing. The building was restored between 1950 and 1957.
St. Catherine's had an organ as early as the late 15th century, and by the 16th century it was considered the most important in Hamburg. This organ was replaced by a new organ built by Hans Stellwagen, rebuilt in 1670 and repaired by Johann Friederich Besser. In 1720, according to Johann Mattheson, this organ consisted of some 58 stops and approximately 88 ranks which may have made it the largest organ in the world at that time.
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.