Guyancourt is a commune in the Yvelines department in the Île-de-France region in north-central France. It is located in the south-western suburbs of Paris, 21.2 km from the center of Paris, in the "new town" of Saint-Quentin-en-Yvelines.
France, in Western Europe, encompasses medieval cities, alpine villages and Mediterranean beaches. Paris, its capital, is famed for its fashion houses, classical art museums including the Louvre and monuments like the Eiffel Tower. The country is also renowned for its wines and sophisticated cuisine. Lascaux?s ancient cave drawings, Lyon?s Roman theater and the vast Palace of Versailles attest to its rich history.