So na Caçana dates from the Talayotic period (1000-700 B.C.) and remained occupied until the arrival of the Romans. It contains up to ten large structures. At first it was thought to be a settlement but archaeological excavation work uncovered up to three taula enclosures, which suggested it was more likely to have been a sanctuary and ceremonial site that may have been used by more than one community.The main features of the site are the central monument, the entrance to which was closed off in the 1st century B.C., and the taula enclosure on the west side. The capital of the taula has not survived, but you can see an unusual pilaster at the back. Also of interest are the niches in the perimeter wall. Archaeological excavation work inside the enclosure has uncovered evidence of the rituals carried out in this type of enclosure. There is also a necropolis in the area, comprising two natural caves and three underground burial chambers.
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.