Twelve Days of Xmas Trivia

[Eva Elisabeth]

Two Turtle Doves - The Old and New Testaments
   
Thank you for all the info, Laurie! I like it when a question leads to further input and discussion.
Since it's the second Day of Xmas (public holiday here and in Austria) I shall try another Xmas-tree-whereabout, but first allow me to remark December 26 is "St. Stephen's Day", dedicated to remember the patron also of Vienna's St. Stephen's Cathedral.
   
He's the patron of the coachmen, which reminds me of that a Viennese coachman lately was fined with some hundred €€, (alternatively he could have spent a day in jail) because of not wearing the traditional hat - there's a strict dress code (written in Vienna state law) to obey when you want to drive a carriage in Vienna...

Now back to what you are actually interested in - where could you see these Xmas trees?