Herrstein Castle, on the north side of the town settlement, was built in the latter half of the 13th century by the Counts of Sponheim. The upper castle had originally four towers at the ringwall’s corners, three of which are preserved. The former castle chapel has been since the 15th century a parish church. On the site of the bailey so-called Schloss (palatial castle) built in 1742.
Evangelical parish church Schlosskirche is a single-naved building, partly Gothic, partly Baroque. A quire arch and east part of the south wall date possibly from the late 13th century.
References:The church of the former Franciscan monastery was built probably between 1515 and 1520. It is located in the UNESCO World Heritage Site of Old Rauma. The church stands by the small stream of Raumanjoki (Rauma river).
The exact age of the Church of the Holy Cross is unknown, but it was built to serve as the monastery church of the Rauma Franciscan Friary. The monastery had been established in the early 15th century and a wooden church was built on this location around the year 1420.
The Church of the Holy Cross served the monastery until 1538, when it was abandoned for a hundred years as the Franciscan friary was disbanded in the Swedish Reformation. The church was re-established as a Lutheran church in 1640, when the nearby Church of the Holy Trinity was destroyed by fire.
The choir of the two-aisle grey granite church features medieval murals and frescoes. The white steeple of the church was built in 1816 and has served as a landmark for seafarers.