Tour Maine-Montparnasse (Maine-Montparnasse Tower), also commonly named Tour Montparnasse, is a 210-meter (689 ft) tall office skyscraper located in Paris, France, in the area of Montparnasse. Constructed from 1969 to 1972, it is the tallest skyscraper in France and the ninth tallest building in the European Union.[citation needed] In the future, it may be surpassed in height by the Tour AXA (225 m), and later by Tour Phare, Tour Signal and Tour Generali (approximately 300 meters).
Built on top of the Montparnasse - Bienvenüe Paris Métro station, the 59 floors of the tower are mainly occupied by offices. The 56th floor, with a restaurant, and the terrace on the top floor, are open to the public for viewing the city. The view covers a radius of 40 km; aircraft can be seen taking off from Orly Airport. The guard-rail can be removed in only two minutes to allow helicopters to land. At the time of construction, it was the tallest building in Europe by roof height. The construction of La Grande Arche in La Défense places the tower in a second line of perspective across Paris.