Within the boundaries of the Bois de Boulogne are an English landscape garden with several lakes and a cascade; two smaller botanical and landscape gardens, the Château de Bagatelle and the Pré-Catelan; a zoo and amusement park in the Jardin d'Acclimatation; GoodPlanet Foundation's Domaine de Longchamp dedicated to ecology and humanism, The Jardin des Serres d'Auteuil, a complex of greenhouses holding a hundred thousand plants; two tracks for horse racing, the Hippodrome de Longchamp and the Auteuil Hippodrome; a tennis stadium where the French Open tennis tournament is held each year, the Fondation Louis Vuitton and other attractions.