The Parc des Buttes Chaumont is a public park situated in northeastern Paris, France, in the 19th arrondissement. Occupying 24.7 hectares, it is the fifth-largest park in Paris, after the Bois de Vincennes, Bois de Boulogne, Parc de la Villette and Tuileries Garden. Opened in 1867, late in the regime of Napoleon III, it was built according to plans by Jean-Charles Adolphe Alphand, who created all the major parks for Haussmann's renovation of Paris commanded by the Emperor.