The most important historical monument of the village Hronsek is the local baroque mansion with corner bastions. The manor house dates back to 1775 and is located in a beautiful garden, where there is a rare, over 200 year old linden and oak tree, which still remembers the glorious times of the manor house.

Unfortunatelly, the mansion decays today. It can only be viewed from the outside while walking in its garden. However, on the second Saturday of May, a ceremonial day of the village of Hronsek takes place in the premises of the Baroque mansion and garden and the manor house is then open to the public. The interior of the mansion has preserved Prussian and mirrored vaults, which also have stucco decorations in some places.