Yes, very interesting discussion indeed.  Re: the Eiffel tower...I have seen a list of other buildings that have so-called architectural copyrights.  I recall that the Sydney Opera house is one of them...I will search for that list and post when I find it.

I also read somewhere that corporate logos can be shown....as long as they are NOT the main subject of the image.

Going further on this discussion....If I take a picture of a "licensed" flower....let's say a rose or tulip....would that be infringement?

@TwoPynts...yes, I see the copyright clause is absent now....but there is a check on your upload that makes you state ownership.

In youth, we learn....with age, we understand.