The older lighthouse of Suurupi was built in 1760. The round old-style stone tower was built near the end of the reign of Czarina Elizaveta Petrovna, this is a magnificent example of classic Russian Imperial lighthouse design. The lighthouse was substantially rebuilt in 1812 and further renovated in 1858. The round watch room was added in 1951, and the present lantern was new in 1998.
The newer wooden lighthouse date back to the year 1859. It is 15 m high, square pyramidal, 4-story wood keeper's house with A-frame roof and painted in white. The light was formerly shown through a window on the top floor at one end of the building; it has been moved outside to the windowsill. A miraculous survivor of two world wars and over 150 winters, this remarkable lighthouse is a well-known historic landmark on Estonia's coastline. The top floor with its lantern chamber was added in 1885, increasing the tower height by 3.5 m.
Reference: Lighthouses of Northern Estonia
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.