The Church of St. Lawrence in Mynämäki is the second biggest medieval church in Finland. The sacristy, oldest part of the church, is dated back to the 13th century. The church itself was quite probably erected in the beginning of 15th century to replace the previous wooden church. It was expanded in 1600s and again in 1770s.
There are couple of old artefacts inside the church, for example wooden epitah from year 1624 and memorial of Fleming noble family also from the 1630s. Finnish National Board of Antiquities has named the church site as national built heritage.
The first written record of church in Danmark locality date back to the year 1291. Close to the church are several stones with a Christian text and cross inscribed. The oldest parts of the present red-brick church are from the 1300s. In the late 1400s the church was enlarged to the appearance it has today. The church has been modified both internally and externally several times, among other things after the fires in 1699 and 1889. There are lot of well-preserved mural paintings in the walls.