Sea ever since. Its 240 kilometres were inscribed as a UNESCO World Heritage Site in 1996. The Jardin des Plantes, the Grand Rond and the Jardin Royal form a set of adjacent parks that span several blocks and include the Museum of Natural History, cafés, children's activities and a botanical garden (18th-19th century). The Prairie des Filtres, the Raymond VI garden and the Japanese garden are other interesting parks that border the center of Toulouse. Museums and theme parks Toulouse has many museums, the most important of which are: Musée des Augustins is the fine arts museum of Toulouse, it is located in the former Augustinian convent. Bemberg Foundation, housed in the Hôtel d'Assézat, presents to the public one of the major private collections of art in Europe. Musée Saint-Raymond is the archeological museum of Toulouse, located in a former college of the university it presents the ancient history of Toulouse and a very rich collection of Roman sculptures from the imperial Roman villa of Chiragan. Musée Paul Dupuy is the museum of Decorative Arts and Graphic Arts, including a very rich collection of clocks and watches. Musée Georges Labit is dedicated to artifacts from the Far-Eastern and Ancient Egyptian civilizations. Muséum de Toulouse is one of the most important natural history museums in France, housed in the former convent of the Discalced Carmelites. Les Abattoirs is the museum of modern and contemporary art of the city, opened in a former municipal slaughterhouse. Toulouse also has several theme parks, notably highlighting its aeronautical and space heritage: Cité de l'espace is a scientific discovery centre focused on spaceflight. Aeroscopia is an aeronautical theme park located near Toulouse–Blagnac Airport, dedicated to the preservation of aeronautical historical heritage (it hosts for example two Concorde airliners). L'Envol des pionniers is a museum that traces the great adventure of l'Aéropostale, a pioneering airmail company based in Toulouse which operated between France and South America from 1918 to 1933, and employed legendary pilots such as Antoine de Saint-Exupéry, Jean Mermoz or Henri Guillaumet... Halle de La Machine is a vast hall that houses numerous small or giant animated machines, often inspired by the world of aeronautics, human or technological epics. Economy Since 2003, Toulouse has been the French city with the fastest growing GDP per capita, a performance driven by growing high-tech industries. Toulouse economy can rely on three pillars: large industrial companies, research laboratories and