LGV大西洋線
Châtenay is the location of "École Centrale Paris", of the Faculty of Pharmacy of the University of Paris-Sud and of French national laboratory of doping detection. It is also the home of the Arboretum de la Vallée-aux-Loups. The high-speed LGV Atlantique crosses the city through a tunnel covered by a park called "Coulée verte" (greenway).