Ukonkivi is a small island in the Inarijärvi lake. It has been a well-known sacrifice place ("seita") for the Samish people for centuries. There are several caves where local people used to bring gifts to Ukko, the god of thunder. Archaeologists have found remains of the reindeer bones, jewelleries and money from the island.
You can reach the Ukonkivi island by water bus from Inari in summer season.
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.