The wooden Orthodox church was built in 1752-1755 on the initiative of Russian sailors. St. Simeon's is the second Orthodox church to have sprung up as part of the suburban building boom that followed the Great Northern War.
The building was seriously damaged during the Soviet period, when it was turned into a sports hall. During this time it also lost its bell tower and onion dome. Fortunately the church was restored after Estonia regained independence, and since 2001, an Estonian Orthodox congregation has once again been active here.
Reference: Tallinn Tourism
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.