The Church of St Petka of the Saddlers is a small one-naved building partially dug into the ground located in the very centre of both the modern and the antique city, in the TZUM underpass. The church features a semi-cylindrical vault, a hemispherical apse, and a crypt discovered during excavations after the Second World War. The walls are 1 m thick and made from brick and stone.
The church was first mentioned in the 16th century and was constructed at the place of a former Roman religious building. It is today a monument of culture known for its mural paintings from the 14th, 15th, 17th and 19th century depicting biblical scenes.
The church is dedicated to St Petka, an 11th-century Bulgarian saint. The Church of Saint Petka acquired its present name due to it being a patron of the saddlers in the Middle Ages, who performed their rituals in the church. The adjective samardzhiyski ('of the saddlers') was derived from the Ottoman Turkish word semerci, meaning 'saddlemaker'.
References: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.