Fun fact, the Eiffel Tower architecture is not protected since 1990, but the lighting is. So it's illegal to use commercialy a night time photo of the tower[1][2].

I don't think anybody has ever been sued but the SETE (Société d'exploitation de la tour Eiffel) do make money with the image.

[1] https://www.toureiffel.paris/en/business/use-image-of-eiffel...

[2] https://en.wikipedia.org/wiki/Eiffel_Tower#Illumination_copy...