The most-visited paid monument on earth. You'll love the view of it more than from it.
The Eiffel Tower is the most-visited paid monument on earth and the symbol of Paris itself. Whether you go up is a real question; whether you see it is not.
Yes to see it — from Trocadero at golden hour; going up is optional and queue-heavy.
The grounds are free; going inside or up is ticketed — book online ahead to skip the queue.
The best experience of the tower is from outside it: the Trocadero terrace across the river at golden hour, or a picnic on the Champ de Mars as it sparkles on the hour after dark.