Looking out from the Eiffel Tower to the west, you’ll see a far-away cluster of skyscrapers. You might wonder if a mini New York City was transplanted there. No, it’s La Défense. If you’ve taken public transportation in Paris, you’ve likely seen the words as a stop on the RER train or the Line 1 Métro, a station flung out to the extreme west of the city. What is La Défense? A neighborhood? A monument? Well, sort of… both.