Altenbrenda Castle - Credit: Wikimedia Commons
Altenbrenda Castle was is a lowland castle, now reduced to a burgstall, located in the Großer Garten, 1000 metres northeast of the present village of Unterweißenbrunn in the borough of Bischofsheim an der Rhön in the Lower Franconian county of Rhön-Grabfeld in Bavaria. Read more on Wikipedia
Source: en.wikipedia.org