Vlattenhaus, Medieval castle ruins in Eynatten, Belgium.
Vlattenhaus is castle ruins in Raeren, standing on a square island with quarry stone walls at its corners. The structure shows multiple levels and still displays the outline of the original fortification today.
Peter of Eynatten built this castle at the end of the 14th century as a fortified residence. Over centuries it underwent changes and eventually served as an agricultural building before suffering heavy damage in the 1940s.
The name reflects its past as a residential and later agricultural structure, and visitors can still see evidence of these different uses in what remains. The layout shows how the building adapted to changing needs over time.
The ruins sit next to the road and are relatively easy to reach, with open access to the grounds. The best time to visit is during daylight when you can see the structure and surroundings clearly.
The Jesuits acquired the property in the 1720s and transformed the water moats into fishponds for their use. This adaptation shows how religious communities repurposed medieval structures for their own needs.
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