St. Nicholas Church was built in about 1165. Located at the intersection of two important trade routes, East-West and North-South, the church was built in memory of Nicholas, the patron saint of medieval wholesalers and traders. Today, it is still situated in the downtown office building to welcome visitors from all over the world. Seen from the west, the church was originally built in Roman style. In the early 16th century, it expanded and built a Gothic Cathedral hall, which has remained until now. The design of the coconut tree pillars in the church is very impressive. The magnificent decorations on the ceiling, the patterns and the long rows of seats in the church are also very remarkable. Artist A. F. Oeser created three paintings for the church, which were displayed on the porch and the temple. The pattern of peace angels on the altar is very rare. There are scenes of the New Testament Bible in the temple, and Jesus is described as a human teacher (south) and God's incredible son (north). These two basic pictures of Jesus were different in that era and today.