It goes without saying that going up la tour Eiffel should be part of your Paris itinerary. Is there a more iconic building in all the world? Your adventure begins a short walk from the tower, where you'll be taught about its history by an Eiffel expert. Avoid the drag of the Eiffel Tower entrance queue, and head to the viewing platform on the second level to learn more about the 18,000-part construction, which was once seen as an eyesore by grumbling Parisians.