St. Stephen's Cathedral is a baroque church built in 1688. Since 730, there have been many churches built on the site of the current cathedral. The current church, a baroque building around 100 metres long, was built from 1668 to 1693 after a fire in 1662 destroyed its predecessor, of which only the late gothic eastern side remains. The cathedral's overall plan was made by Carlo Lurago, its interior decoration by Giovanni Battista Carlone, and its frescos by Carpoforo Tencalla.
Over time, the Passau Cathedral has acquired the largest organ outside of the United States. It is also the largest cathedral organ in the world. The organ currently has 17,774 pipes and 233 registers, all of which can be played with the five-manual general console in the gallery. Portions of the organ have their own mechanical-action or electric-action consoles, for a total of six consoles.
The cathedral has eight large bells in the bell rooms in the north and south towers. The heaviest, Pummerin at 7550 kg cast in 1952 and Sturmerin weighing 5300 kg cast in 1733 hang in the south tower. The other six bells hang in the north tower.
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.