Palais de Tokyo
Thanks to a 2012 expansion that took the museum all the way to the bank of the Seine, nearly tripling its original size, the open-plan Palais de Tokyo is one of the best spots in Europe to see contemporary and modern art. The Musée d’Art Moderne de la Ville de Paris in the eastern wing houses more than 8,000 works of twentieth-century art (Picasso, Matisse, Braque, Delauney, etc.) and opens onto a lovely view of the Eiffel Tower. Complete with a comprehensive children’s program, artists-in-residence, opening hours that extend until midnight, an excellent bookstore (distinguished by its chain-link-fence walls), and restaurants (we like Tokyo Eats), the Palais de Tokyo can easily eat up the better part of a day.