Tour T1, La Defense (1089)
Architects: Agence Valode et Pistre.
Construction began in 2005 and the tower was completed and opened in 2008. The tower, 185 m (607 ft) tall, is the third-tallest skyscraper in La Défense after the Tour Total (190m) and Tour First (231m). Since 2010, the entirety of the building's office space has been rented by Engie. -- Wikipedia