The Castillo Palacio de Marcilla is a Gothic-style castle built in the 15th century by Mosén Pierres de Peralta. At first it had a defensive character but when the Marquisate of Falces was instituted it became the residential palace of the Marquises. The gateway to the castle, which houses the drawbridge under which the moat runs, is next to what is considered to be the Homage Tower, one of the four towers that make up the corners of the castle. Inside the fortress there was a large parade ground around which the rooms and rooms were distributed. The palace chapel preserves its 16th century paintings.
Acquired by the Government of Navarra in 1976 and thoroughly restored in the 2008-2012 period, it currently houses the town hall and other municipal bodies.
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.