Jasov has the biggest monastery complex in Slovakia and its main church, dedicated to St. John The Baptist, is considered one of the country's most important late-Baroque buildings. Though the present complex dates from the 18th century, there has been a monastery since 1170. The first, probably made of wood, was destroyed by the invading Tatars in 1242. A Romanesque stone monastery soon replaced it and was rebuilt in a fortified style in the 15th century. The site was then completely levelled again in 18th century to make way for the present Baroque structure.
The current monastery was designed by the architect Anton Pilgram in 1766. The lavishly ornamented interior of the monastic church in Baroque style, the library of monastery, and conserved French garden are especially valuable. The monastery has 365 windows, 12 chimneys and four gates (representing the days, months and seasons of the year).
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.