Dol Cathedral (Cathédrale Saint-Samson de Dol) was formerly the seat of the Archbishop of Dol, one of the nine ancient bishoprics of Brittany. The archbishopric was suppressed during the French Revolution and abolished by the Concordat of 1801, when it was merged into the dioceses of Rennes and St. Brieuc.
The building is notable for its eclectic mix of styles and idiosyncrasies, such as the incomplete north tower on the main west-facing entrance. The tower was begun in 1520 but never finished due to lack of funds. A local myth has it that the top was knocked off by the devil, who threw the nearby Dol menhir at the building, which was buried in the ground in consequence.
The south facade contains a small 13th-century porch, known as the Bishop's porch. This was supplemented by a much grander porch in the 15th century. The latter was decorated with biblical relief carvings by the sculptor Jean Boucher at the end of the 19th century.
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.