> Views of the Eiffel Tower taken by private individuals for private use do not require prior agreement. However, professionals must contact our teams, who will inform them of the conditions of use governing images.
https://www.toureiffel.paris/en/business/use-image-of-eiffel...
EDIT:
Just to be clear: copyright DOES NOT PREVENT ANYONE from PHOTOGRAPHING the tower at night. It only prevents you from profiting from a photograph that you took of the illuminated tower (and then only if the tower is the main feature of the photograph) without a license agreement from the copyright holder.
This is not supporting either the principle or the consequences of copyright, simply debunking the idea that photographing the tower at night is illegal.