That screams for a rewrite.
I face a similar problem often. For legal reasons, I have to write essentially the equivalent of "Using English (UE)" whenever I mention my company the first time. People send me stuff that reads "UE's expertise in ...." and I have to figure out how to write something that's not "Using English (UE)'s expertise in..."
Anyway, same basic problem.
The Eiffel Tower of Paris, France.
***** NOT A TEACHER *****
Good morning, Ms. Barbara D.
Thank you so much for the informative reply.
I had read a similar sentence published in a free newspaper intended for twenty- and thirtysomethings (I am definitely not the intended demographic).
I guess the whippersnapper who wrote that line was not schooled in the finer points of English.
I admit, however, that I really like it.
(a) It's short and snappy.
(b) I guess we could treat "Paris, France" as a unit, thus deserving of the apostrophe.
(c) As you said, however, this would never do in serious, formal writing.
Thanks again for helping me to better understand my language.