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Tour Maine-Montparnasse (Maine-Montparnasse Tower), also commonly named Tour Montparnasse, is a 210-metre (689 ft) office skyscraper located in the Montparnasse area of Paris, France. Constructed from 1969 to 1973, it was the tallest skyscraper in France until 2011, when it was surpassed by the 231-metre (758 ft) Tour First in the La Défense business district west of Paris's city limits. It remains the tallest building in Paris proper and the third tallest in France, behind Tour First and Tour Hekla. As of July 2023, it is the 53rd-tallest building in Europe.
The tower was designed by architects Eugène Beaudouin, Urbain Cassan, and Louis Hoym de Marien and built by Campenon Bernard. On 21 September 2017, Nouvelle AOM won a competition to redesign the building's façade.