Muravanka Fortified Church was built between 1516 and 1542. Together with earlier Suprasl' and Synkavichy churches it represents an original class of church-fortresses that appeared in Belarus in 15th-16th centuries.These are compact in plan, rectangular buildings flanked in the corners with towers. The top of the walls are fortified with mashykooli and shooting windows. There were cellars in the basement with water and food for the sieged defenders.
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.