The Eiffel Tower is the monument that defines Paris. You can see it from everywhere in Paris but you can also see whole Paris from the top. With only four slow elevators and very long stairs taking you to the top, it is bound to have long waiting lines.
When visiting the capital of France you cannot miss out on visiting the Louvre Museum in Paris. But you will not be the only one with that idea, as many want to see the Mona Lisa and much more. But perhaps you can beat them by skipping the line at the Louvre Museum.