The medieval stone church of Ambla is the oldest in Central Estonia. Construction of the church was started in the mid-13th century. The church has been consecrated in the name of Virgin Mary, the main patron saint of Teutonic Order. In Latin the church is called Ampla Maria (Mary the Majestic), which also has given the name for the village.
The Renaissance-style interior was mainly destroyed in Livonian Wars, but there still exist an altarpiece and pulpit made in the 17th century.
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.