Holtzbrink Castle is the oldest country building in the city, the first mention of it in archaeological manuscripts dates back to the year 1643, and the oldest part of the building is believed to date back to the fifteenth century. It is a very large building distinguished by its gray stones, its high towers, its beautiful domes, and the huge clock tower in it. The palace is currently used as the city's meeting room, where many official and unofficial ceremonies are held.