The Church of St Aeddan, Bettws Newydd, is a fifteenth-century church of twelfth-century origin. The interior contains perhaps the most complete rood arrangement remaining in any church in England and Wales. The rood screen, loft and tympanum are all in situ. The Royal Commission on the Ancient and Historical Monuments of Wales considers that the screen is 'most remarkable' and 'probably unique in the British Isles'.
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.