The Parc des Buttes-Chaumont is a public park situated in northeastern Paris, in the 19th arrondissement. Occupying , it is the fifth-largest park in (or near) Paris, after the Bois de Vincennes, the Bois de Boulogne (both located immediately outside Paris), the Parc de la Villette, and the Tuileries Garden. It was opened in 1867, late in the regime of Emperor Napoleon III, and was built by Jean-Charles Alphand, who created all the major parks of Napoleon III. The park has of roads and of paths. The most famous feature of the park is the Temple de la Sibylle, inspired by the Temple of Vesta in Tivoli, Italy, perched at the top of a cliff fifty metres above the waters of the artificial lake.