When I was first learning about travel stock photography, the Eiffel Tower was given as an example of a universally-recognized landmark that is both most-photographed and most demanded for editorial purposes. This is a bit surprising, because with so many images of it available, one would think that the demand would be satisfied many times over.
Still, there is something more to photographing the Eiffel Tower than simply chalking up another must-take image on the itinerary, at least for me personally. Just being there reaffirms that I am, in fact, in Paris. This is why it this one of the first sites I like to visit when I am in the city. Also, it somehow represents the synergy between the art and engineering, which I find fascinating.
For example, I found out recently that one of the first wind tunnels for fluid mechanics experiments was designed by Gustave Eiffel and installed in the aerodynamics laboratory at the foot of the tower in 1909. It was later moved to its present location in Auteuil in 1912, where it’s still operational, in principle. It is also curious that around that time, Eiffel was involved in a scientific argument about equivalency between testing the aerodynamic properties of objects in a wind tunnel and towing them through air on railroad tracks. Apparently, he appealed for mediation to Henri Poincaré, who declared that the tests would be equivalent, provided that there would be sufficient room in the wind tunnel to from around the tested object without obstruction (what we now refer to as low blockage).