In the Middle Ages, Den Dool castle served as a summer residence for the abbots of the Abbey of Sint-Truiden. The first mention is from 1282. Around 1340 the first abbot, Amelius van Schoonvorst, was there as a refugee during the wars of Liège against prince-bishop Engelbert van der Mark. In 1361 the castle and farm were burned down by knight Hendrik van Halbeek. The castle was restored between 1443 to 1470. and again in 1522. It became a fortified mansion with a ring wall with towers and a deep canal.
Further enhancements were carried out by Abbot Hubertus van Sutendael (1638-1663), who had an entrance gate built in 1621 and a castle chapel in 1649. The complex was transformed in a classical style in the 18th century.
Den Dool was occupied by German soldies in the first and second World Wars causing damage to buildings. Since 1994, De Dool Castle Brewery has been located in the farm of the castle. Various restoration work was carried out in the following years.
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.