The Red Tower (which is actually white) is the only defence tower left from medieval Hanseatic city of New-Pärnu. It is the oldest city’s architectural monument and was used as the prison. According to the chronics, in 14th century Pärnu was encircled by a fortified wall with many towers: the round Viliand Tower, also know as the White Tower, in the north-eastern corner and Red Tower in the south-eastern corner. There may have been also the Holy Spirit’s Tower. After a well-needed reconstruction in 1893 it acquired its current look.
The tower got it's name by the red lining covering both its inside and outside. In 1624, the tower had four floors and a six meter deep prison floor. Three floors been preserved. Red Tower was restored in 1973-1980 without it's original brick lining.
References: Visit Pärnu, Meeting.lv
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.