Why is the Eiffel tower an iconic building for France?

Eiffel Tower has NOT been "accepted to be listed as a World Heritage Site". It has been listed AS A (small) PART OF the site of "Paris, Banks of the River Seine" which IN TOTAL

a. Represents a masterpiece of human creative genius

b. Exhibits an important interchange of human values in architecture, technology and town planning

c. Is an outstanding example of an architectural ensemble or landscape