Tallinn Town Hall, located in the main square, is the only surviving Gothic town hall in Northern Europe. The first recorded mention of the Town Hall dates from 1322. Its present form dates from 1402-1404, when the building was rebuilt. The spire was destroyed in an aerial bombing on March 9, 1944. It was rebuilt in 1950. The Town Hall is in the list of UNESCO World Heritage Sites with the Tallinn's Old Town.
The building has two main storeys and an almost full-sized cellar. The main façade is supported by an open arcade with eight piers and topped by a crenellated parapet. High gables and a pitched roof make the building elegant, but the slender octagonal projecting tower with a gallery for bells gives it particular finesse. The tower is crowned by a late Renaissance spire comprising three cupolas and open galleries.
Today the Town Hall is a representative building of Tallinn City Government, concert hall and museum. The entire building is open to the public in July and August, when less official receptions are held. In other times, visits must be agreed with the Town Hall in advance (except the cellar exhibition).
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.