Käru (Kerro) was established as an estate in the mid-18th century. The present building was built in 1878 and designed by Riga architect Robert Pflug. It is an eclectic building with mainly neo-Renaissance elements. It was damaged during the Revolution of 1905 and also during World War II. The manor house ensemble has several well-preserved and unusual outbuildings and annexes. Explorer Karl von Ditmar was the landowner of Käru and economist Ragnar Nurkse (1907–1959) was also born in Käru Manor. In the 1920s the manor started to work as a school. After the new school building was closed, the house was sold into private ownership.
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.