Basilica of Our Lady of the Assumption (Basilica di Nostra Signora Assunta) was constructed during 1610–1624. The Baroque-style facade was added in 1932, design of the architect Piero de Barbieri; the sculptor Luigi Venzano contributed the facade statues of St. John the Baptist and St. Joseph, while the central relief depicts the Madonna. The interior was decorated across the centuries and includes works by Giulio Benso, Domenico Piola, Nicolò Barabino, and Gian Stefano Rossi.
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.