There has been a spa at Alange at least since Roman times when a bathhouse was constructed with separate facilities for men and women. They already existed in the time of Trajan and Adrian, in the 2nd century CE. The Roman building is rectangular and two circular vaulted chambers can be found, one for women and one for men. In the centre of the chambers are the pools, which are also circular. The vaults in the chambers are hemispherical with skylights in the centre. After several centuries of being abandoned, in the 19th century they were refurbished and the current building was built.
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.