Editing Essonne (section)

==Main sights==
*The {{Lang|fr|[[École Polytechnique]]|italic=no}}. Founded in 1794, [[L'Ecole Polytechnique]] is one of the most prestigious engineering universities in [[France]]. This university was ranked 10th in the world by the [[Times Higher Education Supplement]] in 2005. Its campus is in the town of [[Palaiseau]].
*[[Paris-Sud University]]. One of the best public schools in France, it is ranked 52nd by [[Academic Ranking of World Universities]]. It is best known for its mathematics department. Located in [[Orsay]], Essonne, about 26,000 students are enrolled.
*The Headquarters of the [[Arianespace]] Company, a major commercial aerospace launcher, servicing companies who wish to launch satellites into space.
*Château de [[Montlhéry]]. Originally having been an ancient fort during Roman times, the first feudal lords began to inhabit the castle around 1000 AD. One major battle was fought in the castle during its lifetime. In 1465, [[Charles the Rash]] and French King [[Louis XI]] fought in the plains in front of the castle. In 1842, the reconstruction of the castle was started, and currently is being maintained by the local town of [[Montlhery]]
* [[Château de Courances]]
* [[The Forest of Sénart]]. Covering 3,500 hectares in area, this forest is very important to the local population. The local government has kept roads and agricultural companies from cutting down parts of this forest. The forest receives between two and three million visitors annually, and the government spends 1.2 million [[euros]] a year maintaining it.
* [[Telecom Sudparis]]. Situated in Évry, this is a grande école for engineers