According some references there has been a wooden church and stone sacristy in Rauma even since the 14th century. It might be true that stones of the sacristy was used as a part of the Holy Trinity Church. It was built in the 15th and 16th centuries to replace earlier wooden church.
Anyway, church destroyed in a fire in 1640, and the Church of the Holy Cross has served as the parish church ever since. There are still some ruins remaining in the park area.
Celje Castle was once the largest fortification on Slovenian territory. The first fortified building on the site (a Romanesque palace) was built in the first half of the 13th century by the Counts of Heunburg from Carinthia on the stony outcrop on the western side of the ridge where the castle stands. It had five sides, or four plus the southern side, which was a natural defence. The first written records of the castle date back to between 1125 and 1137; it was probably built by Count Gunter. In the western section of the castle, there was a building with several floors. Remains of the walls of this palatium have survived. In the eastern section, there was an enclosed courtyard with large water reservoirs. The eastern wall, which protects the castle from its most exposed side, was around three metres thicker than the rest of the curtain wall. The wall was topped with a parapet and protected walkway.