The Orthodox church of Hamina (The Church of Peter and Paul) was erected in 1832-37 on the place of burned Lutheran church. It was designed by Frenchman Louis Visconti whose most famous work is the tomb of Napoleon in Hôtel des Invalides.
The round-domed church was built in the Neoclassicism style with Byzantine features. There is a holy icon with St.Peter and Paul which was transferred to Hamina from Vyborg in 1742.
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.