The converted church - St. Anna in the Rose Garden - nestles in the picturesque Neckar Valley near Heidelberg and the Rhine.
Built in the 12th Century, it once served as a seat for the Swabian dynasty of south-western Germany.
The tower, inlaid Italian marble flooring and original stained-glass windows have been carefully preserved.
The attic features beautiful oak beams, the vaulted cellar - complete with a well - has a shiny dolomite floor and the tower's spiral staircase is made of sandstone.
Even the bathroom taps are worth a look.
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