Kremasti Castle looks more like a tower-house than a real castle. Of square plan, it covers an area of 400 square metres and has a perimeter of 80 metres. The only entrance was on the north side. In 1914, the Italian medievalist G. Gerola discovered there the arms of grand master Fabrizio del Carretto (1513-1521) and of the Order of St. John.
The castle was a control point and in the line of sight of Phileremos castle. It served also as a summer resort for the Grand Masters of the Order. It was repaired in 1510-1520 but it existed at least since the 14th century. A document of 1479 the inhabitants of the villages of Trianda and Kremasti were to seek shelter in their own castles in case of need. Other Hospitaller documents show that the village of Kremasti was a castellany.
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.