At the time of its construction in the XVI century Horst Castle was the largest Renaissance castle north of the Alps. The family nest of the Horst family was built three times and was twice destroyed by fires. The first castle on the site emerged in the XIII century, and in less than a century later there was a fire in it: the second stood for more than 200 years. The third castle was built in the style of Dutch Mannerism, with a French roof and four towers. The owner of the castle commissioned its design to the highest-paid masters of the time. Unique ornaments and reliefs appeared on its facade and eight decorated fireplaces and ceiling moldings appeared inside.
The owners sold Horst Castle in the XVIII century. The new owners did not live in the mansion and even moved part of its luxurious features to the other residence. The castle was abandoned and fell into neglect. In the XX century there was an attempt to use it, arranging a disco and restaurants here, which only destroyed it even more. At the end of the XX century Horst Castle was reconstructed by restoring one tower and the north-east wing, and by covering its courtyard with a glass cover. Today, the castle houses a museum with fragments of facades’ and interiors’ redecoration, a wedding palace and a restaurant.