On a wooded hilltop just southeast of Rocbaron village are the ruins of Château de Saint-Sauveur. A short hike up from the village visits the ruins and gives you a magnificent view across the land.
About 10 minutes up the trail are the ruins of the ancient chapel. Really just the stone walls of the old building sitting in the trees at the edge of a small clearing. Interesting, but the real ruins are another 10-15 minutes up to the peak.
At the extreme top of the hill sit the stone ruins of 12th-century Saint Sauveur Castle. Enough of the castle walls remain on the eagles-nest site to give a Medieval feeling about it. Across the hills to the northeast, the castle ruins of Forcalqueiret are clearly visible.
Written history of the castle is rather scarce. Study of the stone defenses indicates 11th century, and possibly 10th century. The story of the castle's demise is also verbal and variable. One theory is that the castle was destroyed during local wars. Another, possibly more plausible, is that the isolated site was abandoned for the newer and more accessible castle of Forcalqueiret.
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.