Opheylissem Castle is a large stately home in Hélécine, Belgium. The present building represents the remains of the former Premonstratensian Opheylissem Abbey, which was dissolved in 1796. Most of the buildings were destroyed, but the abbot's house (prelatuur) remained, and in 1870 was restructured by the architect Alphonse Balat in its present form. Balat laid out the surrounding park at the same time.
The house and park were acquired by the Province of Brabant, and after 1995 became that of the Province of Walloon Brabant.
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.