Located a short drive from GK is the Kasteel Limbricht. Although today it is used as a restaurant, bowling centre, and overall tourist destination, it was once a beautiful fortress.
From In Your Pocket Guide:
The current building, which was built upon the foundations
of the old castle, originates from 1630, although exact
dates aren’t 100% certain since the castle’s archives disappeared
when it was pillaged in 1650. These days you’ll find
the oldest remains of the first chateau in the cellars of the
castle. Of all the rooms in Limbricht, the Great Hall has the
most valuable design elements including its centrepiece, a
unique sandstone fireplace. Unfortunately, you can only visit
the castle as part of a tour group, but you can visit the large
public terrace of its historic courtyard restaurant.
We visited this castle as part of an office dinner party and were met with the kindest hosts. The dinner atop personal table top grills was delicious and the bowling was very fun. Be aware of the platforms on the bowling lanes. They are slippery!