Gurre Castle was a royal castle built in the 12th century. Four towers and a perimeter wall were added in the 1350s; it was excavated in the 19th century (from 1835) and is now restored. It is first mentioned in court chronicles in 1364, when Pope Urban V sent a gift of relics to its chapel.
The castle is associated with a legend about a Danish king named Waldemar (usually identified with the 14th-century Valdemar IV Atterdag), his love for his beautiful mistress Tove Lille (Little Tove) and the jealousy of Queen Helvig. Over the centuries, this core saga was enriched by other legends, eventually growing into a national myth of Denmark. Valdemar IV died in the castle in 1375. The myth was put into poetical form by the novelist and poet Jens Peter Jacobsen; a German translation of his poems forms the text of the huge cantata Gurrelieder by Arnold Schoenberg.
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.