"Unlike most of the rest of the major parks in Paris, this is a natural space without any rigid formality. The 62-acre park, opened in 1867 as part of the Paris Universal Exposition, is built on a former quarry; there are rocky elevations to traipse up with amazing views of the city, including Sacre Couer in nearby Montmartre. And seeing as it's in the 19th arrondissement, you can expect an authentic Parisian experience, off the beaten tourist path—you'll likely need to take a quick metro or taxi ride to get there." - Melissa Liebling-Goldberg