The Burg Altenbaumburg, is a ruined

castle A castle is a type of fortified structure built during the Middle Ages predominantly by the nobility or royalty and by military orders. Scholars debate the scope of the word ''castle'', but usually consider it to be the private fortified r ...

above the municipality of Altenbamberg in Rhineland-Palatinate, Germany."A Ortsporträt by Hermann Goetz" - SWR
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References

Castles in Rhineland-Palatinate Ruined castles in Germany {{RhinelandPalatinate-struct-stub