Santa Lucía del Trampal is a monastic church, one of the few surviving Visigothic buildings. Apparently, the basilica was built toward the end of the 7th century as part of a convent pertaining to the Templar monks, for which it served as a chapel, with a single nave and three chapels in the chancel. Along with the transept, the chancel is the truly Visigothic part, built upon perfectly-angled dressed stone. The main body of the church is believed to have been built around the 14th or 15th century.
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.