Anundshög is the largest tumulus in Sweden. It has a diameter of 60 metres and is about 9 metres high. Assessments of the era of the mound vary between the Bronze Age and the late Iron Age. A fireplace under it has been dated by radiocarbon dating to sometime between AD 210 and 540.
Some historians have associated the mound with the legendary King Anund, while others regard this as speculative. It is purported also that the name is taken from the large runestone at the site, the central stone in a row of 15 alongside the mound, re-erected in the 1960s and apparently marking out the route of the Eriksgata. The inscription on the runestone reads: "Folkvid raised all of these stones after his son Heden, Anund's brother. Vred carved the runes."
At the foot of the mound are 2 large stone ships placed end to end, 51 metres and 54 metres long. The site was a thing-place and the ship settings may be associated with this function.
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.