Burg Katz am Rhein, Germany

The card is unused.  I bought it when on holiday in 1992.
Der Romantische Rhein bei St Goarshausen
Burg katz
Cat Castle on the Rhine.

There are two castles in St. Goarshausen, the Burg Katz seen above, and Burg Maus further along the river.  the area is possibly best know for the Lorelei rock which occurs at the narrowest part of the river where there is a very strong current.