The necropolis in Boljuni has 274 stećak tombstones, 92 of which are decorated and 9 of which have epitaphs, making it one of the Bosnia's few large necropolises. Original motifs found in Boljuni are a lion, a woman cradling a child in her arms, stylized rosettes, fabulous lizard-like beasts, and a round dance with the leader riding a deer. Most of the monuments have been carved between 13th and early 16th centuries.
The necropolis is situated in the valley below the village houses, and distributed into two groups some 400 meters apart. In the surrounding area there are traces of Illyrians (fort and tumuli), and nearby there is the site Crikvina, probably from late antiquity, and the remains of the cemetery (early medieval).
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.