Tour de Lille is an office skyscraper in Euralille, the business district of the Lille metropolitan area. Designed by Christian de Portzamparc, this emblematic tower of the city of Lille is also called "the ski boot", "the flipper" or even "the L".116 m high, with an area of 18,135 m2, it is the fifth tallest tower outside of Île-de-France behind the Tour Incity in Lyon, the Tour Part-Dieu in Lyon, the Tour CMA-CGM in Marseille and the Tour Bretagne in Nantes.