Just take a 20-minute walk in Paris
and you’re likely to glimpse a handful of major landmarks. The Eiffel Tower shoots up from one end. The gilded cap of the Les Invalides gleams just a few blocks away. The Louvre stretches across its waterfront plot, just across the Seine. But in between the staple Paris attractions—or in some cases, a short RER ride away
—you’re in close quarters with dozens more significant sites, like the recently renovated Picasso Museum, situated in a 17th-century mansion in the Marais, or Oscar Niemeyer’s slick, undulating design for the Communist Party headquarters, out in the 19th arrondissement. If you can’t keep track, AD has compiled 25 things to do in Paris, both on and off the beaten path.
Located on the Île de la Cité, a thin island in the Seine, Notre Dame de Paris is perhaps the most famous cathedral in the world. Characterized by its classic French Gothic architecture, the structure was one of the first to use a flying buttress.